Epilepsy, Tonic-Clonic

DEERFIELD, Ill.--( BUSINESS WIRE )--Baxter International Inc. (NYSE:BAX), a global leader in injectables, anesthesia and drug compounding, today announced five new injectable pharmaceutical product launches in the U.S., joining the previous five launches announced in April of this year and marking a total of 10 U.S. injectable product launches in 2024. “ Our Pharmaceuticals teams are relentlessly focused on bringing differentiated products to market that support our customers in helping to address vital patient needs,” said Alok Sonig, executive vice president and group president, Pharmaceuticals, at Baxter. “ We look forward to further accelerating our impact with a robust innovation pipeline across our key therapeutic areas, including critical care, anti-infectives, pain and oncology.” The five recent product launches within Baxter’s Pharmaceuticals portfolio in the U.S. include the following. For all products, please see full Indications, including Limitations of Use, Important Risk Information and links to full Prescribing Information below. Micafungin in 0.9% Sodium Chloride Injection single-dose container is indicated for use in adult and pediatric patients to treat Candida infections and for prophylaxis of Candida infections in patients undergoing hematopoietic stem cell transplantation for whom appropriate dosing with this formulation can be achieved. Micafungin uses Baxter’s proprietary container technology. Baxter offers Micafungin in 50 mg/50 mL, 100 mg/100 mL and 150 mg/150 mL strengths. Cyclophosphamide Injection is an alkylating drug indicated for treatment of adults and pediatric patients with various malignant diseases and is frequently used in combination with other oncology medications. This liquid cyclophosphamide product requires further dilution before use. Baxter offers Cyclophosphamide Injection in 500 mg/2.5 mL and 1000 mg/5 mL strengths in Multiple-Dose Vials. Pantoprazole Sodium in 0.9% Sodium Chloride Injection is a proton pump inhibitor indicated in adults for the short-term treatment (seven to 10 days) of gastroesophageal reflux disease (GERD) associated with a history of erosive esophagitis (EE) and pathological hypersecretion conditions including Zollinger-Ellison (ZE) Syndrome. Pantoprazole uses Baxter’s proprietary container technology. Baxter offers Pantoprazole in 40 mg/50 mL, 40 mg/100 mL and 80 mg/100 mL strengths. Cefazolin in Dextrose Injection, USP now available in a new 3 g/150 mL strength, is a single-dose, first generation cephalosporin antibacterial indicated for adults and pediatric patients to treat various infections caused by susceptible organisms and for perioperative prophylaxis. Cefazolin uses Baxter’s proprietary container technology. Baxter offers Cefazolin in 1 g/50 mL, 2 g/100 mL and 3 g/150 mL strengths. Levetiracetam in Sodium Chloride Injection is an anti-epileptic drug indicated for adjunct therapy in adult patients for partial onset seizures, myoclonic seizures, and tonic-clonic seizures. Levetiracetam uses Baxter’s proprietary container technology and is now offered in 500 mg/100 mL, 1000 mg/100 mL and 1500 mg/100 mL strengths. Ready-to-use formats of standard concentrations of commonly prescribed drugs may offer operational efficiencies for healthcare providers. Compounding a drug for patient use is a multi-step, manual process that requires oversight by pharmacy staff. A ready-to-use product can simplify the preparation process and support patient safety by reducing the chance of contamination 2 and avoiding potential errors that may occur when medications are compounded. 3 These five newly launched products are now available for use in the U.S. About Baxter Pharmaceuticals Baxter is a global leader in specialty injectables, drug compounding and anesthesia that addresses unmet patient needs in the therapeutic areas of pain, critical care, anti-infectives and oncology. Baxter’s comprehensive pharmaceuticals portfolio contains injectables (including ready-to-use products), inhaled gases and compounded medications, and is designed to expand access to products that simplify medication preparation and support patient safety. Pharmaceuticals employees across the globe are focused on driving customer-centered innovation, bringing new and differentiated products and delivery platforms to market, and helping patients receive the medications they need. About Baxter Every day, millions of patients, caregivers and healthcare providers rely on Baxter’s leading portfolio of diagnostic, critical care, kidney care, nutrition, hospital and surgical products used across patient homes, hospitals, physician offices and other sites of care. For more than 90 years, we’ve been operating at the critical intersection where innovations that save and sustain lives meet the healthcare providers who make it happen. With products, digital health solutions and therapies available in more than 100 countries, Baxter’s employees worldwide are now building upon the company’s rich heritage of medical breakthroughs to advance the next generation of transformative healthcare innovations. To learn more, visit www.baxter.com and follow us on X , LinkedIn and Facebook . Micafungin in 0.9% Sodium Chloride Injection Indications Micafungin in Sodium Chloride Injection is an echinocandin indicated in adult and pediatric patients for: Treatment of Candidemia, Acute Disseminated Candidiasis, Candida Peritonitis and Abscesses in adult and pediatric patients 4 months of age and older for whom appropriate dosing with this formulation can be achieved. Treatment of Candidemia, Acute Disseminated Candidiasis, Candida Peritonitis and Abscesses without meningoencephalitis and/or ocular dissemination in pediatric patients younger than 4 months of age for whom appropriate dosing with this formulation can be achieved. Treatment of Esophageal Candidiasis in adult and pediatric patients 4 months of age and older for whom appropriate dosing with this formulation can be achieved. Prophylaxis of Candida Infections in adult and pediatric patients 4 months of age and older undergoing Hematopoietic Stem Cell Transplantation (HSCT) for whom appropriate dosing with this formulation can be achieved. Limitations of Use: The safety and effectiveness of Micafungin in Sodium Chloride Injection have not been established for the treatment of candidemia with meningoencephalitis and/or ocular dissemination in pediatric patients younger than 4 months of age as a higher dose may be needed. Micafungin in Sodium Chloride Injection has not been adequately studied in patients with endocarditis, osteomyelitis or meningoencephalitis due to Candida. The efficacy of Micafungin in Sodium Chloride Injection against infections caused by fungi other than Candida has not been established. Important Risk Information Contraindications: Micafungin in Sodium Chloride Injection is contraindicated in persons with known hypersensitivity to micafungin sodium, any component of Micafungin in Sodium Chloride Injection, or other echinocandins. Hypersensitivity Reactions: Anaphylaxis and anaphylactoid reactions (including shock) have been observed. Discontinue Micafungin in Sodium Chloride Injection and administer appropriate treatment. Hematological Effects: Acute intravascular hemolysis and hemoglobinuria was seen in a healthy volunteer during infusion of Micafungin for Injection (200 mg) and oral prednisolone (20 mg). Cases of significant hemolysis and hemolytic anemia have also been reported in patients treated with Micafungin for Injection. Patients who develop clinical or laboratory evidence of hemolysis or hemolytic anemia during therapy should be monitored closely for evidence of worsening of these conditions and evaluated for the risk/benefit of continuing therapy. Hepatic Effects: Laboratory abnormalities in liver function tests have been seen in healthy volunteers and patients treated with Micafungin. In some patients with serious underlying conditions who were receiving Micafungin along with multiple concomitant medications, clinical hepatic abnormalities have occurred, and isolated cases of significant hepatic impairment, hepatitis, and hepatic failure have been reported. Monitor hepatic function. Discontinue if severe dysfunction occurs. Renal Effects: Elevations in BUN and creatinine; isolated cases of renal impairment or acute renal failure have been reported. Monitor renal function. Infusion and Injection Site Reactions: Possible histamine-mediated symptoms have been reported with Micafungin for Injection, including rash, pruritus, facial swelling, and vasodilatation. Slow the infusion rate if infusion reaction occurs. Injection site reactions, including phlebitis and thrombophlebitis have been reported, at Micafungin for Injection doses of 50 to 150 mg/day. These reactions tended to occur more often in patients receiving Micafungin for Injection via peripheral intravenous administration. High Sodium Load: Each 50, 100, and 150 mL Galaxy container contains 200, 400, and 600 mg of sodium, respectively. Avoid use in patients with congestive heart failure, elderly patients, and patients requiring restricted sodium intake. Adverse Reactions: Most common adverse reactions across adult and pediatric clinical trials for all indications include diarrhea, nausea, vomiting, abdominal pain, pyrexia, thrombocytopenia, neutropenia, and headache. In pediatric patients younger than 4 months of age, the following additional common adverse reactions were reported at an incidence rate of ≥15%: hypokalemia, acidosis, sepsis, anemia, and oxygen saturation decreased. Drug Interactions: Monitor for sirolimus, itraconazole or nifedipine toxicity, and dosage of sirolimus, itraconazole or nifedipine should be reduced, if necessary. Pregnancy: Based on animal data, Micafungin in Sodium Chloride Injection may cause fetal harm. Advise pregnant women of the risk to the fetus. Please see accompanying full Prescribing Information for Micafungin in 0.9% Sodium Chloride Injection . Cyclophosphamide Injection Indications Cyclophosphamide Injection is an alkylating drug indicated for treatment of adult and pediatric patients with: Malignant Diseases: malignant lymphomas: Hodgkin's disease, lymphocytic lymphoma, mixed-cell type lymphoma, histiocytic lymphoma, Burkitt's lymphoma; multiple myeloma, leukemias, mycosis fungoides, neuroblastoma, adenocarcinoma of ovary, retinoblastoma, breast carcinoma. Important Risk Information Contraindications Hypersensitivity: Cyclophosphamide is contraindicated in patients who have a history of severe hypersensitivity reactions to it, any of its metabolites, or to other components of the product. Anaphylactic reactions including death have been reported. Possible cross-sensitivity with other alkylating agents can occur. Urinary outflow obstruction Myelosuppression, Immunosuppression, Bone Marrow Failure and Infections: Cyclophosphamide can cause myelosuppression, bone marrow failure, and severe immunosuppression which may lead to serious and sometimes fatal infections, including sepsis and septic shock. Latent infections can be reactivated. Monitoring of complete blood counts is essential during cyclophosphamide treatment so that the dose can be adjusted, if needed. Urinary Tract and Renal Toxicity: Hemorrhagic cystitis, pyelitis, ureteritis, and hematuria have been reported with cyclophosphamide. Discontinue cyclophosphamide therapy in case of severe hemorrhagic cystitis. Urotoxicity may require interruption of cyclophosphamide treatment or cystectomy. Urotoxicity can be fatal. Before starting treatment, exclude or correct any urinary tract obstructions. Urinary sediment should be checked regularly for the presence of erythrocytes and other signs of urotoxicity and/or nephrotoxicity. Cyclophosphamide Injection should be used with caution, if at all, in patients with active urinary tract infections. Aggressive hydration with forced diuresis and frequent bladder emptying can reduce the frequency and severity of bladder toxicity. Mesna has been used to prevent severe bladder toxicity. Cardiotoxicity: Myocarditis, myopericarditis, pericardial effusion including cardiac tamponade, and congestive heart failure, which may be fatal, have been reported with cyclophosphamide therapy. Supraventricular arrhythmias and ventricular arrhythmias have been reported after treatment with regimens that included cyclophosphamide. The risk of cardiotoxicity may be increased with high doses of cyclophosphamide, in patients with advanced age, and in patients with previous radiation treatment to the cardiac region and/or previous or concomitant treatment with other cardiotoxic agents. Monitor patients, especially those with risk factors for cardio toxicity or pre-existing cardiac disease. Pulmonary Toxicity: Pneumonitis, pulmonary fibrosis, pulmonary veno-occlusive disease and other forms of pulmonary toxicity leading to respiratory failure have been reported during and following treatment with cyclophosphamide. Late onset pneumonitis appears to be associated with increased mortality. Monitor patients for signs and symptoms of pulmonary toxicity. Secondary Malignancies: Cyclophosphamide is genotoxic. Secondary malignancies have been reported in patients treated with cyclophosphamide-containing regimens. The risk of bladder cancer may be reduced by prevention of hemorrhagic cystitis. Veno-occlusive Liver Disease (VOD): VOD including fatal outcome has been reported in patients receiving cyclophosphamide-containing regimens. A cytoreductive regimen in preparation for bone marrow transplantation that consists of cyclophosphamide in combination with whole-body irradiation, busulfan, or other agents has been identified as a major risk factor. VOD has also been reported to develop gradually in patients receiving long-term low-dose immunosuppressive doses of cyclophosphamide. Alcohol Content: The alcohol content in a dose of Cyclophosphamide Injection may affect the central nervous system. Consideration should be given to the alcohol content on the ability to drive or use machines immediately after the infusion. Embryo-Fetal Toxicity: Cyclophosphamide Injection can cause fetal harm when administered to a pregnant woman. Exposure to cyclophosphamide during pregnancy may cause birth defects, miscarriage, fetal growth retardation, and fetotoxic effects in the newborn. Advise females of reproductive potential to use effective contraception during treatment and for up to 1 year after completion of therapy. Advise male patients with female partners of reproductive potential to use effective contraception during treatment and for 4 months after completion of therapy. Infertility: Male and female reproductive function and fertility may be impaired in patients being treated with Cyclophosphamide Injection. Cyclophosphamide interferes with oogenesis and spermatogenesis. It may cause sterility in both sexes. Cyclophosphamide-induced sterility may be irreversible in some patients. Adverse Reactions: Most common adverse reactions reported are neutropenia, febrile neutropenia, fever, alopecia, nausea, vomiting, and diarrhea. Lactation: Advise not to breastfeed. Renal Patients: Monitor for toxicity in patients with moderate and severe renal impairment. Please see accompanying full Prescribing Information for Cyclophosphamide Injection . Pantoprazole Sodium in 0.9% Sodium Chloride Injection Indications Pantoprazole Sodium in 0.9% Sodium Chloride Injection is a proton pump inhibitor (PPI) indicated in adults for the following: Short-term treatment (7 to 10 days) of gastroesophageal reflux disease (GERD) associated with a history of erosive esophagitis (EE). Pathological hypersecretion conditions including Zollinger-Ellison (ZE) Syndrome. Important Risk Information Contraindications Patients with a known hypersensitivity to any component of the formulation or to substituted benzimidazoles. Hypersensitivity reactions may include anaphylaxis, anaphylactic shock, angioedema, bronchospasm, acute tubulointerstitial nephritis, and urticaria. Patients receiving rilpivirine-containing products. Presence of Gastric Malignancy: In adults, symptomatic response to therapy does not preclude the presence of gastric malignancy. Consider additional follow-up and diagnostic testing in adult patients who have a suboptimal response or an early symptomatic relapse after completing treatment with a PPI. In older patients, also consider an endoscopy. Injection Site Reactions: Thrombophlebitis was reported in association with the administration of another intravenous pantoprazole sodium product. Potential for Exacerbation of Zinc Deficiency: Pantoprazole Sodium in 0.9% Sodium Chloride Injection contains edetate disodium (the salt form of EDTA), a chelator of metal ions including zinc. Therefore, zinc supplementation should be considered in patients who are prone to zinc deficiency. Caution should be used when other EDTA containing products are also co-administered intravenously. Acute Tubulointerstitial Nephritis (TIN): Has been observed in patients taking PPIs and may occur at any point during PPI therapy. Patients may present with varying signs and symptoms from symptomatic hypersensitivity reactions to non-specific symptoms of decreased renal function. Discontinue Pantoprazole Sodium in 0.9% Sodium Chloride Injection and evaluate patients with suspected acute TIN. Clostridioides difficile -associated diarrhea: Published observational studies suggest that PPI therapy may be associated with an increased risk of Clostridioides difficile -associated diarrhea, especially in hospitalized patients. This diagnosis should be considered for diarrhea that does not improve. Patients should use the lowest dose and shortest duration of PPI therapy appropriate to the condition being treated. Bone Fracture: Several published observational studies suggest that PPI therapy may be associated with an increased risk for osteoporosis-related fractures of the hip, wrist, or spine. The risk of fracture was increased in patients who received high-dose, defined as multiple daily doses, and long-term PPI therapy (a year or longer). Patients should use the lowest dose and shortest duration of PPI therapy appropriate to the condition being treated. Patients at risk for osteoporosis-related fractures should be managed according to established treatment guidelines. Severe Cutaneous Adverse Reactions: Including erythema multiforme, Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), drug reaction with eosinophilia and systemic symptoms (DRESS), and acute generalized exanthematous pustulosis (AGEP) have been reported in association with the use of PPIs. Discontinue Pantoprazole Sodium in 0.9% Sodium Chloride Injection at the first signs or symptoms of severe cutaneous adverse reactions or other signs of hypersensitivity and consider further evaluation. Cutaneous Lupus Erythematosus (CLE) and Systemic Lupus Erythematosus (SLE): Have been reported in patients taking PPIs, including pantoprazole sodium. These events have occurred as both new onset and an exacerbation of existing autoimmune disease. The majority of PPI-induced lupus erythematous cases were CLE. Avoid administration of PPIs for longer than medically indicated. If signs or symptoms consistent with CLE or SLE are noted in patients, discontinue the drug and refer the patient to the appropriate specialist for evaluation. Most patients improve with discontinuation of the PPI alone in 4 to 12 weeks. Hepatic Effects: Mild, transient transaminase elevations have been observed in clinical studies with another intravenous pantoprazole sodium product. The clinical significance of this finding in a large population of subjects is unknown. Hypomagnesemia and Mineral Metabolism: Hypomagnesemia, symptomatic and asymptomatic, has been reported rarely in patients treated with PPIs for at least three months, and in most cases after a year of therapy. Serious adverse events include tetany, arrhythmias, and seizures. Hypomagnesemia may lead to hypocalcemia and/or hypokalemia and may exacerbate underlying hypocalcemia in at-risk patients. In most patients, treatment of hypomagnesemia required magnesium replacement and discontinuation of the PPI. Fundic Gland Polyps: PPI use is associated with an increased risk of fundic gland polyps that increases with long-term use, especially beyond one year. Most PPI users who developed fundic gland polyps were asymptomatic. Use the shortest duration of PPI therapy appropriate to the condition being treated. Adverse Reactions: Most common adverse reactions (incidence > 2%) are headache, diarrhea, nausea, abdominal pain, vomiting, flatulence, dizziness, and arthralgia. Drug Interactions: See the full prescribing information for a list of clinically important drug interactions. Pregnancy: Based on animal data, may cause fetal harm. Please see accompanying full Prescribing Information for Pantoprazole Sodium in 0.9% Sodium Chloride Injection . Cefazolin in Dextrose Injection, USP Indications Cefazolin in Dextrose Injection is a cephalosporin antibacterial indicated for: Treatment of respiratory tract infections in adults and pediatric patients for whom appropriate dosing with this formulation can be achieved. Limitations of Use : Injectable benzathine penicillin is considered the drug of choice in treatment and prevention of streptococcal infections, including the prophylaxis of rheumatic fever. Treatment of the following infections caused by susceptible isolates of the designated microorganisms in adult and pediatric patients for whom appropriate dosing with this formulation can be achieved: Urinary tract infections; Skin and skin structure infections; Biliary tract infections; Bone and joint infections; Genital infections; Septicemia; Endocarditis. Perioperative prophylaxis in adults and pediatric patients aged 10 – 17 years old for whom appropriate dosing with this formulation can be achieved. To reduce the development of drug-resistant bacteria and maintain the effectiveness of Cefazolin in Dextrose Injection and other antibacterial drugs, Cefazolin in Dextrose Injection should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria. Important Risk Information Contraindications: Hypersensitivity to Cefazolin or other cephalosporin class antibacterial drugs, penicillins, or other beta-lactams. Hypersensitivity Reactions to Cefazolin, Cephalosporins, Penicillins, or Other Beta-lactams: Serious and occasionally fatal hypersensitivity (anaphylactic) reactions have been reported in patients receiving beta-lactam antibacterial drugs. Before therapy with Cefazolin in Dextrose Injection, careful inquiry should be made to determine whether the patient has had previous immediate hypersensitivity reactions to cefazolin, cephalosporins, penicillins, or carbapenems. Exercise caution if this product is to be given to penicillin-sensitive patients because cross-hypersensitivity among betalactam antibacterial drugs may occur in up to 10% of patients with a history of penicillin allergy. If an allergic reaction occurs, discontinue the drug. Seizures in Patients with Renal Impairment: Seizures may occur particularly in patients with renal impairment when the dosage is not reduced appropriately. Discontinue Cefazolin in Dextrose Injection if seizures occur or make appropriate dosage adjustments in patients with renal impairment. Anticonvulsant therapy should be continued in patients with known seizure disorders Clostridioides difficile -associated Diarrhea (CDAD): May range in severity from mild diarrhea to fatal colitis. CDAD must be considered in all patients who present with diarrhea following antibiotic use. If CDAD is suspected or confirmed, ongoing antibiotic use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of C. difficile , and surgical evaluation should be instituted as clinically indicated. Prothrombin Activity: Cefazolin in Dextrose Injection may be associated with a fall in prothrombin activity. Those at risk include patients with renal or hepatic impairment or poor nutritional state, as well as patients receiving a protracted course of antimicrobial therapy, and patients previously stabilized on anticoagulant therapy. Prothrombin time should be monitored in patients at risk and exogenous vitamin K administered as indicated. Adverse Reactions: Adult and Pediatric Patients : Most common adverse reactions: gastrointestinal (nausea, vomiting, diarrhea), and allergic reactions (anaphylaxis, urticaria, skin rash). Pediatric Patients with Perioperative Prophylaxis : The most frequently reported adverse reactions (incidence ≥ 5%) were nausea, infusion site pain, and headache. Drug Interactions: Probenecid: The renal excretion of cefazolin is inhibited by probenecid. Co-administration of probenecid with Cefazolin in Dextrose Injection is not recommended. Please see accompanying full Prescribing Information for Cefazolin in Dextrose Injection, USP . Levetiracetam in Sodium Chloride Injection Indications Levetiracetam in Sodium Chloride Injection is indicated for adjunct therapy in adults (≥16 years of age) with the following seizure types when oral administration is temporarily not feasible: Partial-onset seizures Myoclonic seizures in patients with juvenile myoclonic epilepsy Primary generalized tonic-clonic seizures Important Risk Information Contraindications: Levetiracetam in Sodium Chloride Injection is contraindicated in patients with a hypersensitivity to levetiracetam. Reactions have included anaphylaxis and angioedema. Psychiatric Reactions: Behavioral abnormalities including psychotic symptoms, suicidal ideation, irritability, and aggressive behavior have been observed. Monitor patients for psychiatric signs and symptoms. Somnolence and Fatigue: Monitor patients for these symptoms and advise patients not to drive or operate machinery until they have gained sufficient experience on levetiracetam. Anaphylaxis and Angioedema: Levetiracetam can cause anaphylaxis or angioedema. In some reported cases, reactions were life-threatening and required emergency treatment. If a patient develops signs or symptoms of anaphylaxis or angioedema, levetiracetam should be discontinued and the patient should seek immediate medical attention. Serious Dermatological Reactions: Serious reactions, including Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), have been reported in patients treated with levetiracetam. Recurrence of the serious skin reactions following rechallenge has also been reported. Levetiracetam should be discontinued at the first sign of a rash, unless the rash is clearly not drug-related. If signs or symptoms suggest SJS/TEN, use of this drug should not be resumed, and alternative therapy should be considered. Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)/Multiorgan Hypersensitivity: This has been reported in patients taking antiepileptic drugs, including levetiracetam. These events can be fatal or life-threatening, particularly if diagnosis and treatment do not occur as early as possible. DRESS typically, although not exclusively, presents with fever, rash, lymphadenopathy, and/or facial swelling, in association with other organ system involvement, sometimes resembling an acute viral infection. If such signs or symptoms are present, the patient should be evaluated immediately. Levetiracetam should be discontinued if an alternative etiology for the signs or symptoms cannot be established. Coordination Difficulties: Monitor for ataxia, abnormal gait, and incoordination. Patients should be monitored for these signs and symptoms and advised not to drive or operate machinery until they have gained sufficient experience on levetiracetam. Withdrawal Seizures: Levetiracetam must be gradually withdrawn. But if withdrawal is needed because of a serious adverse reaction, rapid discontinuation can be considered. Hematologic Abnormalities: Hematologic abnormalities occurred in clinical trials and included decreases in white blood cell, neutrophil, and red blood cells counts; decreases in hemoglobin and hematocrit; and increases in eosinophil counts. Cases of agranulocytosis, pancytopenia, and thrombocytopenia have been reported in the post-marketing setting. A complete blood count is recommended in patients experiencing significant weakness, pyrexia, recurrent infections, or coagulation disorders. Adverse Reactions: Most common adverse reactions (incidence in levetiracetam-treated patients is ≥5% more than in placebo-treated patients) include: somnolence, asthenia, infection, and dizziness. Pregnancy: Plasma levels of levetiracetam may be decreased; monitor closely during pregnancy. Based on animal data, may cause fetal harm. Encourage women who are taking levetiracetam injection during pregnancy to enroll in the North American Antiepileptic Drug (NAAED) pregnancy registry. Renal Impairment: Dosage adjustment is recommended for patients with impaired renal function and supplemental doses should be given to patients after dialysis. Please see accompanying full Prescribing Information for Levetiracetam in Sodium Chloride Injection . This release includes forward-looking statements concerning Micafungin in 0.9% Sodium Chloride Injection, Cyclophosphamide Injection, Pantoprazole Sodium in 0.9% Sodium Chloride Injection, Cefazolin in Dextrose Injection, USP and Levetiracetam in Sodium Chloride Injection, including potential benefits associated with the use of these products. The statements are based on assumptions about many important factors, including the following, which could cause actual results to differ materially from those in the forward-looking statements: demand for and market acceptance for new and existing products; product development risks; inability to create additional production capacity in a timely manner or the occurrence of other manufacturing or supply difficulties (including as a result of natural disasters, public health crises and epidemics/pandemics, regulatory actions or otherwise); satisfaction of regulatory and other requirements; actions of regulatory bodies and other governmental authorities; product quality, manufacturing or supply, or patient safety issues; changes in law and regulations; and other risks identified in Baxter's most recent filing on Form 10-K and Form 10-Q and other SEC filings, all of which are available on Baxter's website. Baxter does not undertake to update its forward-looking statements. Baxter is a registered trademark of Baxter International Inc. 1 Includes line extensions. 2 Mercaldi CJ, Lanes S, Bradt J. Comparative risk of bloodstream infection in hospitalized patients receiving intravenous medication by open, point-of-care, or closed delivery systems. Am J Health-Syst Pharm. 2013;70:957-965. 3 Billstein-Leber M, Carrillo CJD, Cassano AT, Moline K, Robertson JJ. ASHP Guidelines on Preventing Medication Errors in Hospitals. Am J Health Syst Pharm. 2018;75(19):1493-1517. US-PH121-240011 (v3.0) 12/2024

– OLE data shows sustained monthly reduction in seizure frequency, impressive seizure freedom rates, and consistent AE safety profile suggesting long-term efficacy and tolerability of azetukalner – Approximately one in three patients on drug for at least 36 months achieved seizure freedom for a period of one year or longer – Sustained monthly reductions in seizure frequency maintained at 85% at OLE study month 36 – Patient-reported survey data and literature review illustrate significant mental health and comorbidity burdens of focal onset seizures highlighting areas of unmet need for people living with epilepsy – New pre-clinical data shows Nav1.1 potentiator provides protection against spontaneous seizures and SUDEP in pre-clinical Dravet model VANCOUVER, British Columbia and BOSTON, Dec. 06, 2024 (GLOBE NEWSWIRE) -- Xenon Pharmaceuticals Inc. (Nasdaq: XENE), a neuroscience-focused biopharmaceutical company dedicated to discovering, developing, and delivering life-changing therapeutics for patients in need, today announced new compelling long-term data from its ongoing X-TOLE open-label extension (OLE) study of azetukalner in patients with focal onset seizures (FOS) presented at the American Epilepsy Society Annual Meeting (AES 2024) taking place December 6-10, 2024 at the Los Angeles Convention Center in Los Angeles, CA. “We are excited for this opportunity to engage with the broad epilepsy community at AES 2024 and share new long-term azetukalner data from our ongoing X-TOLE open-label extension study showing compelling evidence of sustained seizure reduction and seizure freedom rates,” stated Dr. Christopher Kenney, Chief Medical Officer of Xenon. “Approximately one-third of patients who have been on azetukalner for at least 36 months achieved 100% seizure reduction, or seizure freedom, for a period of one year or longer. This is a meaningful metric for epileptologists who tell us that seizure freedom translates directly into improved quality of life for people living with epilepsy. Further, we continue to see an impressive, sustained monthly reduction in seizure frequency – approximately 85% at month 36 – while importantly maintaining a consistent safety profile that suggests azetukalner continues to be generally well-tolerated.” Dr. Kenney added, “There remains a substantial need for new, efficacious and well-tolerated epilepsy therapies, especially for those patients who continue to experience the debilitating impacts of focal seizures even while taking multiple anti-seizure medications. As we continue to build upon the foundation of strong X-TOLE results, amass a growing amount of supportive data from the ongoing open-label extension study, and drive towards Phase 3 completion, we believe that azetukalner could be paradigm-shifting in the treatment of epilepsy in the future.” Poster Presentation #2.361: Long-term Safety and Efficacy of Azetukalner, a Novel, Potent Kv7 Potassium Channel Opener in Adults With Focal Epilepsy: Update From the Ongoing 7-year Open-Label Extension of X-TOLE The results presented at AES 2024 are interim data from the X‑TOLE OLE in which participants received open‑label azetukalner at a dose of 20 mg once daily (QD) with food. Sustained reductions in seizure frequency: For ongoing OLE patients, monthly median percent change (MPC) reductions in FOS frequency ranged from 61%‑82% during month 1 to OLE study month 24 and were maintained at 85% at OLE study month 36. Patients who were receiving 1 to 2 anti-seizure medications (ASMs) at baseline experienced higher monthly MPC reductions in FOS frequency from baseline at OLE study month 36 (100% seizure reduction, n=67), compared to those receiving 3 ASMs (80.6% seizure reduction, n=80).Achieving seizure freedom: For those participants who were treated for >36 months in the OLE, 32.7% (48/147) achieved seizure freedom for a period of at least 12 months.Consistent tolerability and safety profile: Azetukalner continues to be generally well‑tolerated in the OLE, with AEs consistent with prior results in the double-blind period and other ASMs; no new safety signals were identified.Long-term retention: A total of 182 participants were treated in the OLE for ≥12 months, 165 participants were treated for ≥24 months, and 143 participants were treated for ≥36 months at the time of the analysis cutoff (October 7, 2024). Retention rates with azetukalner at 12, 24, and 36 months into the OLE study period were 66%, 60%, and 52%, respectively. “With over 600 patient-years of azetukalner exposure in people living with epilepsy – and some patients now on drug for more than 5 years – these latest long-term OLE results further validate our substantial clinical experience with azetukalner and reinforce our belief that azetukalner represents a potentially best-in-class anti-seizure medication,” stated Ian Mortimer, President and Chief Executive Officer of Xenon. “In addition to the interim long-term OLE data, we will present important results from a patient-survey and a literature review study looking at the impacts of the mental health burden and comorbidities of focal onset seizures. We will also highlight new data from our Nav1.1 potentiator program that showed protection against spontaneous seizures and SUDEP in a pre-clinical model, suggesting that targeting Nav1.1 could potentially address the underlying cause and symptoms of Dravet Syndrome,” added Mr. Mortimer. Poster Presentation #2.347: Is the Mental Health Burden of Epilepsy Under-Recognized in Patients Reporting Focal Onset Seizures? A Patient-Reported Outcomes Study Patients with epilepsy reporting FOS experience considerable mental health burden in addition to their recurring seizure burden. Most patients experienced ≥3 non-seizure symptoms despite ongoing treatment with existing anti-seizure medications, with most experiencing mood issues (e.g., depression, anxiety) that ranged from moderate to severe.The high positive screening rates for depression and anxiety, in contrast to lower self-reported physician-diagnosed depression and anxiety, suggest mental health burden may be under-recognized in patients with epilepsy reporting FOS. Poster Presentation #2.338: A Targeted Literature Review of Comorbidity Burden in Focal Onset Seizures Patients with FOS and comorbid conditions experience greater disease burden compared to those without comorbidities, highlighting an area of unmet need in this population.Enhanced understanding of the association between comorbidities, particularly mental health comorbidities like depression and the burden of FOS may enable personalized treatment and help in improving patient outcomes. Poster Presentation #3.389: Nav1.1 Potentiators Modulate Brain Rhythms Measured Through Quantitative Electrocorticography (qECoG) in a Dravet Mouse Model These data suggest Scn1a+/‑ mouse brain activity is differentiated from that in wild‑type littermates. XPC‑418, a Nav1.1 potentiator, altered brain activity in Scn1a+/‑ mice, making the phenotype more similar to that of wild‑type animals, and also changed brain activity in wild‑type mice in a dose‑ and time‑dependent manner.These pre-clinical data indicate that Nav1.1 potentiation could normalize the power spectrum phenotype of Dravet mice to the wild‑type phenotype. Poster Presentation #3.395: Selective Potentiation of Nav1.1 Channels in Dravet Mice Restores Interneuron Function and Improves Motor Function Acute dosing of XPC‑837 – an orally available, small molecule, CNS-penetrant, highly selective Nav1.1 potentiator – suppressed induced seizures in the 6Hz assay and improved motor performance in the Rotarod assay, supporting the potential for improvements in Dravet patient motor function. Chronic dosing over 14 days with XPC‑837 in chow suppressed spontaneous seizures, prevented sudden unexpected death in epilepsy (SUDEP) and increased long-term potentiation, a potential cellular correlate of learning and memory.These pre-clinical data suggest that XPC‑837 could represent a novel, mechanistically differentiated, orally available compound with the potential to provide an improved therapeutic profile for the overarching treatment of Dravet Syndrome. Scientific Exhibit Xenon is hosting a Scientific Exhibit to provide an overview of its clinical and research programs on Sunday, December 8, 2024 from 2 pm to 5 pm PT in Room 406A on level 2. In addition to the posters noted above, the exhibit will provide information related to the azetukalner Phase 3 epilepsy program, including its ongoing clinical trials in focal onset seizures and primary generalized tonic-clonic seizures. The exhibit will also feature the topline results from the Phase 2 X-NOVA clinical trial that evaluated azetukalner in major depressive disorder. Exhibit Hall In addition to Booth #1721 in the Exhibit Hall, Xenon is hosting a dedicated Mindfulness Zone (#1827) to rest, recharge, and learn more about the mental health burden associated with epilepsy. As part of Xenon’s commitment to raising awareness about mental health, visitors are invited to join the cause with donations going to the Epilepsy Foundation of America to support comprehensive mental health programming, which strives to ensure that all individuals living with epilepsy and seizure disorders have access to quality, affordable mental health care. The Exhibit Hall will open on Saturday, December 7 at 12 pm PT and close on Monday, December 9 at 2 pm PT. About Xenon Pharmaceuticals Inc. Xenon Pharmaceuticals (Nasdaq: XENE) is a neuroscience-focused biopharmaceutical company dedicated to discovering, developing, and delivering life-changing therapeutics. We are advancing an ion channel product portfolio to address areas of high unmet medical need, including epilepsy and depression. Azetukalner, a novel, highly potent, selective Kv7 potassium channel opener, represents the most advanced, clinically validated potassium channel modulator in late-stage clinical development for multiple indications. For more information, please visit www.xenon-pharma.com. Safe Harbor Statement This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995 and Canadian securities laws. These forward-looking statements are not based on historical fact, and include statements regarding the timing of and potential results from clinical trials; the potential efficacy, safety profile, future development plans in current and anticipated indications, addressable market, regulatory success and commercial potential of our and our partners’ product candidates; the efficacy of our clinical trial designs; our ability to successfully develop and achieve milestones in our azetukalner and other pipeline and development programs; and our ability to successfully develop and obtain regulatory approval of azetukalner and our other product candidates. These forward-looking statements are based on current assumptions that involve risks, uncertainties and other factors that may cause the actual results, events, or developments to be materially different from those expressed or implied by such forward-looking statements. These risks and uncertainties, many of which are beyond our control, include, but are not limited to: clinical trials may not demonstrate safety and efficacy of any of our or our collaborators’ product candidates; promising results from pre-clinical development activities or early clinical trial results may not be replicated in later clinical trials; our assumptions regarding our planned expenditures and sufficiency of our cash to fund operations may be incorrect; our ongoing discovery and pre-clinical efforts may not yield additional product candidates; any of our or our collaborators’ product candidates, including azetukalner, may fail in development, may not receive required regulatory approvals, or may be delayed to a point where they are not commercially viable; we may not achieve additional milestones in our proprietary or partnered programs; regulatory agencies may impose additional requirements or delay the initiation of clinical trials; the impact of market, industry, and regulatory conditions on clinical trial enrollment; the impact of competition; the impact of expanded product development and clinical activities on operating expenses; the impact of new or changing laws and regulations; as well as the other risks identified in our filings with the U.S. Securities and Exchange Commission and the securities commissions in British Columbia, Alberta, and Ontario. These forward-looking statements speak only as of the date hereof and we assume no obligation to update these forward-looking statements, and readers are cautioned not to place undue reliance on such forward-looking statements. “Xenon” and the Xenon logo are registered trademarks or trademarks of Xenon Pharmaceuticals Inc. in various jurisdictions. All other trademarks belong to their respective owner. Contacts: For Investors:Chad FugereVice President, Investor Relations(857) 675-7275investors@xenon-pharma.com For Media:Colleen AlabisoSenior Vice President, Corporate Affairs(617) 671-9238media@xenon-pharma.com

CORAL GABLES, Fla., Aug. 20, 2024 (GLOBE NEWSWIRE) -- Catalyst Pharmaceuticals, Inc. ("Catalyst" or "Company") (Nasdaq: CPRX), a commercial-stage biopharmaceutical company focused on in-licensing, developing, and commercializing novel medicines for patients living with rare and difficult-to-treat diseases, today announced that Richard J. Daly, President and CEO of Catalyst, along with other members of Catalyst's management team, will participate in the upcoming investor conferences detailed below. 2024 Wells Fargo Healthcare Conference Date: Thursday, September 5, 2024Presentation: 2:15 PM ETWebcast Link H.C. Wainwright 26th Annual Global Investment Conference Date: Monday, September 9, 2024 - VirtualPresentation: Available beginning at 7:00 AM ETWebcast Link 2024 Cantor Global Healthcare Conference Date: Wednesday, September 18, 2024Presentation: 2:30 PM ETWebcast Link The webcasts will be available under the Investors section on the Company's website, www.catalystpharma.com, and a replay will be available for at least 30 days. About Catalyst Pharmaceuticals With exceptional patient focus, Catalyst is committed to developing and commercializing innovative first-in-class medicines that address rare and difficult-to-treat diseases. Catalyst's flagship U.S. commercial product is FIRDAPSE® (amifampridine) Tablets 10 mg, approved for the treatment of Lambert-Eaton myasthenic syndrome ("LEMS") in adults and pediatric patients 6 years of age and older. Further, Canada's national healthcare regulatory agency, Health Canada, has approved the use of FIRDAPSE for the treatment of adult patients in Canada with LEMS. Most recently, on May 30, 2024, the FDA approved an increased maximum daily dose of 100 mg for FIRDAPSE for adults and pediatric patients weighing more than 45 kg. In January 2023, Catalyst acquired the U.S. commercial rights to FYCOMPA® (perampanel) CIII, a prescription medicine approved in people with epilepsy aged four and older alone or with other medicines to treat partial-onset seizures with or without secondarily generalized seizures and with other medicines to treat primary generalized tonic-clonic seizures for people with epilepsy aged 12 and older. On July 18, 2023, Catalyst acquired an exclusive license for North America for AGAMREE® (vamorolone) oral suspension 40 mg/mL, a novel corticosteroid treatment for Duchenne Muscular Dystrophy. AGAMREE previously received FDA Orphan Drug and Fast Track designations and was approved by the FDA for commercialization in the U.S. on October 26, 2023. AGAMREE became commercially available by prescription in the U.S. on March 13, 2024. Further, in July 2024, Catalyst entered into an exclusive license, supply, and commercialization agreement for AGAMREE in Canada. For more information about Catalyst, please visit the Company's website at www.catalystpharma.com. For Full Prescribing and Safety Information for FIRDAPSE®, please visit www.firdapse.com. For Full Prescribing Information, including Boxed WARNING for FYCOMPA®, please visit www.fycompa.com. For Full Prescribing Information for AGAMREE®, please visit www.agamree.com. Forward-Looking Statements This press release contains forward-looking statements, as that term is defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve known and unknown risks and uncertainties, which may cause Catalyst's actual results in future periods to differ materially from forecasted results. A number of factors, including those factors described in Catalyst's Annual Report on Form 10-K for the fiscal year 2023 and its other filings with the U.S. Securities and Exchange Commission ("SEC"), could adversely affect Catalyst. Copies of Catalyst's filings with the SEC are available from the SEC, may be found on Catalyst's website, or may be obtained upon request from Catalyst. Catalyst does not undertake any obligation to update the information contained herein, which speaks only as of this date. Source: Catalyst Pharmaceuticals, Inc.