You should not use loperamide if you have ulcerative colitis, bloody or tarry stools, diarrhea with a high fever, or diarrhea caused by antibiotic medication.
Loperamide is safe when used as directed. TAKING TOO MUCH LOPERAMIDE CAN CAUSE SERIOUS HEART PROBLEMS OR DEATH.
Serious heart problems may also happen if you take loperamide with other medicines. Ask a doctor or pharmacist about safely using medications together.
Do not give loperamide to a child younger than 2 years old.
Before taking this medicine
You should not use loperamide if you are allergic to it, or if you have:
stomach pain without diarrhea;
diarrhea with a high fever;
ulcerative colitis;
diarrhea that is caused by a bacterial infection; or
stools that are bloody, black, or tarry.
Ask your doctor before using loperamide to treat diarrhea caused by taking an antibiotic (Clostridium difficile).
Do not give loperamide to a child younger than 2 years old. Do not give  loperamide to an older child or teenager without a doctor's advice.
Ask a doctor or pharmacist if it is safe for you to take loperamide if you have:
a fever;
mucus in your stools;
liver disease; or
a heart rhythm disorder.
Ask a doctor before using this medicine if you are pregnant.
You should not breast-feed while you are using loperamide.
