Digestive health · Anti-foaming agent (anti-gas)
Simethicone
Simethicone is used to help relieve bloating, gas pain, and pressure caused by trapped air in the digestive tract.
OTCPaediatric useSenior precautionOverview & typical uses
Simethicone is used to help relieve bloating, gas pain, and pressure caused by trapped air in the digestive tract.
Primary uses
- Relief of bloating and gas pain
- Support during infant colic (special paediatric drops)
How it works
Breaks large gas bubbles in the stomach and intestines into smaller ones, easing their passage. Not absorbed into the bloodstream.
Available forms & strengths
- Chewable tablet — 40 mg, 80 mg, 125 mg (Oral)
- Oral drops — 40 mg / 0.6 mL (Oral) · Paediatric
General precautions & contraindications
Do not use if
- Known allergy to any ingredient
Pregnancy
Generally considered safe. Not systemically absorbed; considered safe.
Breastfeeding
Generally considered safe. Not systemically absorbed; safe during breastfeeding.
Paediatric use
Paediatric drops are commonly used for colic under clinical guidance.
Older adults
Well tolerated.
Common side effects
- Very rare mild digestive discomfort
Drug interactions
May slightly reduce absorption — space doses apart.
Food & alcohol precautions
No notable food interactions recorded.
Storage, missed dose & overdose
Storage
Store below 25 °C, out of reach of children.
If a dose is missed
Taken as needed after meals or at bedtime for gas relief.
Overdose
Overdose is not clinically relevant (not absorbed).
Frequently asked questions
It targets gas and bloating, not acid. Combine with antacids (or use combination products) for both symptoms.
Medical references
- British National Formulary — Simethicone — BNF (NICE)
Content last reviewed: 2025-01-01
Medical disclaimer
This information is for educational purposes only and should not replace professional medical advice. Please consult a licensed pharmacist or clinician for advice tailored to your personal circumstances.