Tipepidine (INN) (brand names Asverin, Antupex, Asvelik, Asvex, Bitiodin, Cofdenin A, Hustel, Nodal, Sotal), also known as tipepidine hibenzate (JAN), is a synthetic, non-opioid antitussive and expectorant of the thiambutene class.[1][2] It acts as an inhibitor of G protein-coupled inwardly-rectifying potassium channels (GIRKs).[3] The drug was discovered in the 1950s,[4] and was developed in Japan in 1959.[5] It is used as the hibenzate and citrate salts.[1][5]
 | |
| Clinical data | |
|---|---|
| AHFS/Drugs.com | International Drug Names |
| Routes of administration | Oral |
| ATC code | |
| Legal status | |
| Legal status |
|
| Identifiers | |
| |
| CAS Number | |
| PubChem CID | |
| ChemSpider | |
| UNII | |
| KEGG | |
| CompTox Dashboard (EPA) | |
| Chemical and physical data | |
| Formula | C15H17NS2 |
| Molar mass | 275.43 g·mol−1 |
| 3D model (JSmol) | |
| |
| |
| (verify) | |
The usual dose is 20 mg every 4–6 hours.[citation needed] Possible side effects of tipepidine, especially in overdose, may include drowsiness, vertigo, delirium, disorientation, loss of consciousness, and confusion.[5]
Tipepidine has been investigated as a potential psychiatric drug. It is being investigated in depression,[3][6][7] obsessive-compulsive disorder,[8] and attention-deficit hyperactivity disorder (ADHD).[9][10][11] Through inhibition of GIRK channels, tipepidine increases dopamine levels in the nucleus accumbens, but without increasing locomotor activity or producing methamphetamine-like behavioral sensitization, and this action appears to be at least partly responsible for its antidepressant-like effects in rodents.[12][13]