Loperamide Side Effects

Possible side effects of loperamide are listed below. Call your doctor for medical advice if these side effects are severe or persistent.

• Tiredness
• Constipation
• Lightheadedness
• Drowsiness

Occasionally, loperamide can cause more serious side effects. Call your healthcare professional right away or seek emergency medicine attention if you develop:

• Skin rash, hives, itching, blistering, or peeling skin
• Swelling of the face, eyes, lips, tongue, or throat
• Wheezing
• Trouble breathing or swallowing
• Stomach pain
• Fever
• Blood in stools
• Irregular, fast, or pounding heartbeat
• Severe dizziness or fainting

The above list may not include all the potential side effects of loperamide. Contact your healthcare provider if your side effects are unusual or severe or if they do not get better over time. You can also report unusual side effects to the Food and Drug Administration at 1-800-FDA-1088.

Loperamide Overdose: In case of an overdose of loperamide, call your doctor immediately. You can also call the National Poison Control Center at 1-800-222-1222. Call 911 if a person has collapsed, stopped breathing, stopped responding, or had a seizure. Signs and symptoms of an overdose of loperamide may include nausea, difficulty urinating, irregular, fast or pounding heartbeat, confusion, fainting, unresponsiveness, small pupils, shortness of breath, or slowed breathing.

Source: FDA