Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Dicyclomine (Bentyl) and loperamide (Imodium A-D) are both medications used to treat gastrointestinal issues, but they belong to different drug classes and have different uses. Dicyclomine is an anticholinergic medication primarily used to treat irritable bowel syndrome (IBS) by relaxing the muscles in the stomach and intestines to reduce cramping. Loperamide, on the other hand, is an antidiarrheal medication used to control symptoms of diarrhea, including those related to chronic gut conditions. While dicyclomine is available only by prescription, loperamide can be purchased over-the-counter or by prescription. Dicyclomine is typically taken four times a day, whereas loperamide is taken after each loose stool, with specific dosing limits. Common side effects of dicyclomine include dizziness, dry mouth, and blurred vision, while loperamide may cause dizziness, drowsiness, and constipation. Additionally, dicyclomine can interact with anticholinergic medications, while loperamide should be used cautiously with medications affecting heart rhythm.
Dicyclomine
Imodium multi-symptom relief
Dicyclomine
Imodium multi-symptom relief
Summary of Bentyl vs. Imodium (multi symptom)
Summary for Anticholinergic
Prescription only
Dicyclomine, also known by its brand name Bentyl, is an anticholinergic medication that's used to treat spasms of the muscles in the stomach and intestines in adults with irritable bowel syndrome (IBS). This medication is available as generic tablets, capsules, and liquid that are taken by mouth four times daily. There's also an injection form of dicyclomine that's available as brand name and generic; it's injected into the muscle for people who can't take pills by mouth. Common side effects include dizziness, dry mouth, and blurry vision.
Summary for Antidiarrheal / Antiflatulent
Imodium Multi-Symptom Relief is a combination medication that contains loperamide and simethicone. It's used to relieve symptoms of diarrhea and bloating and cramps from gas. Loperamide is an antidiarrheal medication, while simethicone helps ease gassiness (flatulence). Imodium Multi-Symptom Relief can be used for people over the age of 6. In general, you can take a tablet after each loose stool (up until the maximum daily dose). Imodium Multi-Symptom Relief is found over the counter as brand-name and generic versions. Side effects aren't common but can include tiredness and dizziness.