Antispasmodic APIs are a class of compounds used to treat muscle spasms and cramps, which work by inhibiting excessive muscle contraction, thereby relieving the pain and discomfort associated with spasms. It is commonly used clinically to relax smooth muscles in various organs, including the gastrointestinal tract, urinary tract, and blood vessels. Antispasmodic APIs are often divided into antimuscarinics and calcium channel blockers. Antimuscarinic APIs are mainly used to relieve conditions such as irritable bowel syndrome and colic, while calcium channel blockers are mainly used to relieve uterine spasms, coronary artery spasms, and hypertension.

Protheragen-ING offers a full range of antispasmodic APIs s to support the research of customers worldwide.