Common side effects of Imodium (loperamide) may include:
The above side effects should not alarm you.
Serious side effects of Imodium (loperamide) may include:
- diarrhea that is watery or bloody;
- stomach pain or bloating; or
- ongoing or worsening diarrhea;
If you have any of the above side effects, contact your doctor right away.
Contact your doctor if you notice signs of…
Overdose – fast or pounding heartbeats, fluttering in your chest, shortness of breath, and sudden dizziness (like you might pass out).
Severe skin reaction – fever, sore throat, burning in your eyes, skin pain, red or purple skin rash that spreads and causes blistering and peeling.
Allergic reaction – hives, difficult breathing, swelling in your face or throat.
Dehydration – no urination or having very dark yellow pee, very dry skin, feeling dizzy, rapid heartbeat, sunken eyes, sleepiness, or fainting.