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Loperamide/Simethicone

Loperamide/Simethicone Side Effects

Kristianne Hannemann, PharmDAllison Gourley, PharmD
Reviewed by Kristianne Hannemann, PharmD, Allison Gourley, PharmD
Last reviewed on June 13, 2024

The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.

Common Side Effects

  • Tiredness
  • Drowsiness
  • Dizziness

Loperamide/Simethicone serious side effects

Contact your healthcare provider immediately if you experience any of the following.

  • Stomach swelling or bulging

Source: DailyMed

The following Loperamide/Simethicone side effects have also been reported

Side effects that you should report to your care team as soon as possible:

  • Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
  • Heart rhythm changes—fast or irregular heartbeat, dizziness, feeling faint or lightheaded, chest pain, trouble breathing
  • Redness, blistering, peeling, or loosening of the skin, including inside the mouth
  • Severe stomach pain
  • Trouble passing urine

Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):

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