How to take loperamide. Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about loperamide and will provide you with a full list of the side-effects which you may experience from taking it. Hi Ken, First, are you taking a supplement or eating anything that could be causing this effect, such as iron pills, loperamide (i.e. Kaopectate) bismuth coumpounds (i.e. Pepto-Bismol). Fecal incontinence refers to the involuntary loss of gas or liquid stool (called minor incontinence) or the involuntary loss of solid stool (called major incont Fluids - have lots to drink. If you suspect that you are dehydrated, you should contact a doctor. As a rough guide, drink at least 200 mls after each bout of diarrhoea (after each watery stool). Loperamide is a medicine to treat diarrhoea (runny poo). It can help with short term diarrhoea or irritable bowel syndrome (IBS). Loperamide is also used for longer lasting diarrhoea from bowel problems such as Crohn's disease, ulcerative colitis and short bowel syndrome. CAUTION: If you have had recent hip surgery do not use this position (check first with your doctor). Lean forward a little and rest your elbows on your knees. Chemotherapy is an effective way to treat many cancers. However, the strong drugs can have unpleasant side effects. I was just diagnosed with diabetes. Last week my doctor prescribed metformin to me. I take one 500mg pill two times a day. I have been having diarrhea about 2 hours after each dose. It is used to treat diarrhea. It is used to ease too much gas in the stomach. What do I need to tell my doctor BEFORE I take Loperamide and Simethicone? Diarrhea is often a side effect of cancer treatment. Learn about causes and symptoms, and diagnosing and managing diarrhea.