• Basic Info
• Top Questions
• Clinical Info
• Interactions

What is the most important information I should know about loperamide?

You should not use this medication if you are allergic to loperamide, or if you have stools that are bloody, black, or tarry, or if you have diarrhea that is caused by taking an antibiotic.

Before taking loperamide, tell your doctor if you are allergic to any drugs, or if you have a fever, mucus in your stools, a history of liver disease, or if you are taking an antibiotic.

Drink extra water while you are taking this medication to keep from getting dehydrated. It may take up to 48 hours of taking loperamide before your symptoms improve. For best results, keep using the medication as directed. Talk with your doctor if your symptoms do not improve after 10 days of treatment. Loperamide can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.

What is loperamide?

Loperamide slows the rhythm of digestion so that the small intestines have more time to absorb fluid and nutrients from the foods you eat.

Loperamide is used to treat diarrhea. Loperamide is also used to reduce the amount of stool in people who have an ileostomy (re-routing of the bowel through a surgical opening in the stomach).

Loperamide may also be used for other purposes not listed in this medication guide.

What should I discuss with my healthcare provider before taking loperamide?

Do not use this medication if you are allergic to loperamide, or if you have:

• stools that are bloody, black, or tarry; or

• if you have diarrhea that is caused by taking an antibiotic.

Before taking loperamide, tell your doctor if you are allergic to any drugs, or if you have:

• a fever;

• mucus in your stools;

• a history of liver disease; or

• if you are taking an antibiotic.

If you have any of these conditions, you may need a dose adjustment or special tests to safely take loperamide.

FDA pregnancy category B. This medication is not expected to be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment. It is not known whether loperamide passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby. Do not give this medicine to a child younger than 2 years old without the advice of a doctor.