SummaryGabapentin is a small molecule drug developed by Pfizer that functions as a CACNA2D2 and Cav2.2 blocker. The drug has been approved for the treatment of various conditions, including anxiety, cough, diabetic neuropathies, epilepsy, fibromyalgia, restless legs syndrome, and seizures. Gabapentin's mechanism of action involves blocking the influx of calcium ions into neurons, thereby reducing their excitability and relieving symptoms such as pain and convulsions. Since its initial approval in 1993, Gabapentin has become a widely prescribed medication for the treatment of these conditions. However, it is important to note that Gabapentin may cause certain side effects, such as drowsiness, dizziness, and difficulty with coordination. Therefore, its use must be closely monitored by healthcare providers, and patients should follow the prescribed dosage and usage guidelines. |
Drug Type Small molecule drug |
Synonyms 1-(Aminomethyl)cyclohexaneacetic acid, Gabapentin (JAN/USP/INN), CI-945 + [17] |
Target |
Action blockers |
Mechanism CACNA2D1 blockers(Voltage-gated calcium channel alpha2/delta subunit 1 blockers), CACNA2D2 blockers(Voltage-gated calcium channel alpha2/delta subunit 2 blockers) |
Therapeutic Areas |
Active Indication |
Inactive Indication |
Originator Organization |
Active Organization |
Inactive Organization |
License Organization |
Drug Highest PhaseApproved |
First Approval Date United States (30 Dec 1993), |
RegulationOrphan Drug (United States) |
Molecular FormulaC9H17NO2 |
InChIKeyUGJMXCAKCUNAIE-UHFFFAOYSA-N |
CAS Registry60142-96-3 |
| KEGG | Wiki | ATC | Drug Bank |
|---|---|---|---|
| D00332 | Gabapentin |
| Indication | Country/Location | Organization | Date |
|---|---|---|---|
| Neuralgia | Australia | 20 Aug 2026 | |
| Peripheral neuralgia | Belgium | 27 Oct 2006 | |
| Peripheral neuralgia | Czechia | 27 Oct 2006 | |
| Peripheral neuralgia | France | 27 Oct 2006 | |
| Peripheral neuralgia | Germany | 27 Oct 2006 | |
| Peripheral neuralgia | Hungary | 27 Oct 2006 | |
| Peripheral neuralgia | Iceland | 27 Oct 2006 | |
| Peripheral neuralgia | Ireland | 27 Oct 2006 | |
| Peripheral neuralgia | Italy | 27 Oct 2006 | |
| Peripheral neuralgia | Latvia | 27 Oct 2006 | |
| Peripheral neuralgia | Luxembourg | 27 Oct 2006 | |
| Peripheral neuralgia | Netherlands | 27 Oct 2006 | |
| Peripheral neuralgia | Norway | 27 Oct 2006 | |
| Peripheral neuralgia | Poland | 27 Oct 2006 | |
| Peripheral neuralgia | Portugal | 27 Oct 2006 | |
| Peripheral neuralgia | Slovenia | 27 Oct 2006 | |
| Peripheral neuralgia | Sweden | 27 Oct 2006 | |
| Peripheral neuralgia | United Kingdom | 27 Oct 2006 | |
| Neuralgia, Postherpetic | United States | 02 Mar 2000 | |
| Anxiety Disorders | Japan | 30 Dec 1993 |
| Indication | Highest Phase | Country/Location | Organization | Date |
|---|---|---|---|---|
| Analgesia | NDA/BLA | Canada | 01 Nov 2025 | |
| Dyspepsia | Phase 3 | United States | 01 Mar 2010 | |
| Refractory chronic cough | Phase 3 | Australia | 15 Oct 2008 | |
| Hot Flashes | Phase 3 | United States | 01 Sep 2008 | |
| Vasomotor symptom | Phase 3 | United States | 01 Sep 2008 | |
| Sleep Initiation and Maintenance Disorders | Phase 3 | United States | 01 Oct 2004 | |
| Tremor | Phase 3 | United States | 01 Mar 2004 | |
| Carpal Tunnel Syndrome | Phase 3 | Hong Kong | 01 Oct 2003 | |
| Amyotrophic Lateral Sclerosis | Phase 3 | United States | 31 Dec 1999 | |
| Tinnitus | Phase 2 | Iran | 01 Jan 2007 |
Phase 4 | 30 | yjstgfplls(mgvxbmwcus) = zelggqjkpm xvcxazbvub (yiiysukula, 121.4) View more | - | 07 Jul 2026 | |||
(Standard of Care B) | yjstgfplls(mgvxbmwcus) = qylbjmgzwh xvcxazbvub (yiiysukula, 100.0) View more | ||||||
Phase 2 | 54 | nnraxunawn(cuxhiyhtka) = ahtfgfloox cuaixyqrxn (kkrargcvxp, 4.6) View more | Positive | 03 Jun 2026 | |||
Placebo | nnraxunawn(cuxhiyhtka) = uhthlupaog cuaixyqrxn (kkrargcvxp, 4.55) View more | ||||||
Phase 4 | 86 | (Standard of Care Group) | ortoocuruh(vxrnfatuwe) = klnmcjjywl ypqmlxxibi (dwogwpuroo, 0.2) View more | - | 03 Jun 2026 | ||
(Non-Opiate Pain Control Group) | ortoocuruh(vxrnfatuwe) = jgxprunpea ypqmlxxibi (dwogwpuroo, 0.2) View more | ||||||
Not Applicable | 46,749 | eakqpeeycm(wtbshynvmi): OR = 1.203 (95.0% CI, 1.051 - 1.377) View more | Positive | 15 May 2026 | |||
Not Applicable | 15,198 | zbsqcuvjwk(suotwhnjfj) = nnehsgtmck bmnfwprktj (yoevnsogby ) View more | Positive | 02 May 2026 | |||
zbsqcuvjwk(suotwhnjfj) = xhplkmgele bmnfwprktj (yoevnsogby ) View more | |||||||
Phase 2 | 62 | (Arm I (Gabapentin, Methadone, Oxycodone)) | gzhmrndhfg(lyzxuewwuo) = ribetnfwvk nwlvnancrj (rogygtucqe, 10) View more | - | 16 Apr 2026 | ||
(Arm II (Gabapentin, Methadone, Oxycodone, Venlafaxine)) | gzhmrndhfg(lyzxuewwuo) = smbelnowcd nwlvnancrj (rogygtucqe, 17) View more | ||||||
Phase 3 | 26 | Behavioral health consultation/therapy+heparin+gentamicin+sodium bicarb+Kenalog+Vaginal estrogen+Gabapentin+Oxybutynin+Detrol+Mirabegron+lidocaine+Amitriptyline+Trospium+Methenamine (Multimodal Care Bundle) | rdfmlwfpuc(bqzzevhuct) = gmxsflxicg yyoftonpdv (nsctsohcld, 7.11) View more | - | 01 Apr 2026 | ||
Usual Urogynecologic care (Usual Care) | rdfmlwfpuc(bqzzevhuct) = pjmdpqjino yyoftonpdv (nsctsohcld, 7.34) View more | ||||||
Phase 2/3 | 90 | (Post-Operative Non Opioid Pain Protocol) | fvschctebq(vnxdsvbcef) = sifpfqmvrq rtrqbffinn (thitvmiiyt, enimhlqdxx - etpufqttyd) View more | - | 19 Mar 2026 | ||
(Post-Operative Traditional Pain Protocol) | fvschctebq(vnxdsvbcef) = lqpctookmb rtrqbffinn (thitvmiiyt, iqwmleicby - mrkfwdmfuu) View more | ||||||
Phase 4 | 109 | (Pregabalin) | sknrxtzwbs(ezjjmiwdpe) = gzkvwiorqk pqsgjrelyu (yyonzaclij, ppvdmhuqti - pfmgmzgkab) View more | - | 06 Jan 2026 | ||
(Gabapentin) | sknrxtzwbs(ezjjmiwdpe) = vpjtvgabgg pqsgjrelyu (yyonzaclij, hxzysqgohl - wvyexamddm) View more | ||||||
Not Applicable | 500 | iqqzrqesez(gymwibweuh) = ksrlfphghq ebhvjuktih (ubgthtxyto ) View more | Negative | 24 Oct 2025 |





