Hydrocodone bitartrate is a drug commonly used for pain relief, approved first in the United States. The drug works by binding to opioid receptors in the brain, acting as a mu/kappa/delta agonist.
Dicyclomine Hydrochloride, sold as BENTYL, is an antispasmodic and anticholinergic drug. Introduced in 1950 for Irritable Bowel Syndrome treatment in the US, it has now been removed from the market.
Diazepam, a significant GABAA receptor agonist approved by Waylis in 1963, effectively treats conditions like muscle spasticity, alcohol withdrawal, anxiety disorders, and epilepsy.
Methylphenidate hydrochloride is a leading CNS stimulant, first approved by the US on December 5, 1955, and developed by Novartis. It effectively treats narcolepsy, ADD, and ADHD.