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An antispasmodic is a medicine used to reduce muscle spasms or cramping. Many antispasmodics act on smooth muscle in the digestive tract, bladder, or other organs. Some work by blocking acetylcholine signals, while others relax muscle through different pathways. They are used when spasms contribute to pain, cramping, urgency, or discomfort.
read more about antispasmodic ...Antispasmodics reduce involuntary muscle contractions. Anticholinergic antispasmodics block muscarinic receptors, which can relax smooth muscle and reduce cramping. Other antispasmodics act more directly on muscle or nerve signaling. The effect depends on the drug and the organ system being treated.
Antispasmodics are used for intestinal cramping, irritable bowel syndrome symptoms, bladder spasms, urinary urgency, and selected pelvic or abdominal spasm conditions. Some are used before procedures to reduce spasms in the digestive tract or urinary tract. They do not treat every cause of abdominal pain, diarrhea, or urinary symptoms. Pain with fever, vomiting, bleeding, severe swelling, or sudden worsening needs medical care.
Examples include dicyclomine, hyoscyamine, oxybutynin, tolterodine, solifenacin, flavoxate, mebeverine, and pinaverium. Dicyclomine and hyoscyamine are commonly used for gastrointestinal spasms. Oxybutynin, tolterodine, and solifenacin are used for bladder-related symptoms. Product availability and approved uses vary by country.
Antispasmodics can cause dry mouth, dry eyes, constipation, dizziness, headache, drowsiness, blurred vision, fast heartbeat, or trouble urinating. Anticholinergic antispasmodics can be risky for older adults and people with narrow-angle glaucoma, urinary retention, bowel blockage, or severe constipation. Alcohol and sedating medicines can increase drowsiness. Seek care for confusion, severe belly pain, inability to urinate, fainting, fast irregular heartbeat, or allergic swelling.
Yes, dicyclomine is an antispasmodic. It is used to reduce gastrointestinal muscle spasms in selected patients.
Not exactly. Antispasmodics commonly target smooth muscle spasms in organs, while muscle relaxers often refer to medicines for skeletal muscle spasms or spasticity.
Yes, dry mouth is a common side effect, especially with anticholinergic antispasmodics. Dry eyes, constipation, and blurred vision can also happen.
Seek medical care for severe pain, fever, vomiting, blood in stool, black stools, swollen abdomen, fainting, or pain that gets worse. These symptoms can point to a condition that needs urgent treatment.
Antispasmodic Medication: Uses & Side Effects. Cleveland Clinic. https://my.clevelandclinic.org/health/treatments/antispasmodics. Date Accessed June 3, 2026.
Dicyclomine: MedlinePlus Drug Information. MedlinePlus. https://medlineplus.gov/druginfo/meds/a684007.html. Date Accessed June 3, 2026.
Use of Antispasmodics for the Treatment of Abdominal Pain. Mayo Clinic. https://www.mayoclinic.org/medical-professionals/digestive-diseases/news/use-of-antispasmodics-for-the-treatment-of-abdominal-pain/mac-20526520. Date Accessed June 3, 2026.
Role of Antispasmodics in the Treatment of Irritable Bowel Syndrome. PMC. https://pmc.ncbi.nlm.nih.gov/articles/PMC4033443/. Date Accessed June 3, 2026.
Label: DICYCLOMINE HYDROCHLORIDE tablet. DailyMed. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=e576f409-d319-4878-9863-25988be7fde1. Date Accessed June 3, 2026.