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Clinical data | |
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Trade names | Spasmoctyl 40, Doralin |
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ECHA InfoCard | 100.043.128 |
Chemical and physical data | |
Formula | C29H43BrN2O4 |
Molar mass | 563.577 g·mol−1 |
3D model (JSmol) | |
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Otilonium bromide, sold under the trade name Spasmomen among others, is an antimuscarinic and calcium channel blocker used to relieve spasmodic pain of the gut, especially in irritable bowel syndrome.[1] This means it works in the gut themselves, by relaxing the small muscles of the intestines, which results in relieving cramps and therefore reduces pain.
A pooled analysis of three clinical trials suggest that otilonium is more effective than placebo for the treatment of irritable bowel syndrome.[2]
Otilinium binds to both muscarinic receptors and tachykinin NK2 receptors.[3] It has been shown to inhibit L-type and T-type calcium channels, actions which may contribute to or determine its effects in the gut.[4][5]
When taken orally, very little of the drug is absorbed into the rest of the body,[6] which means that most of its actions remain confined to the gastrointestinal system.