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Simethicone: uses, side effects & brands
Simethicone relieves bloating, trapped wind and infant colic. It belongs to the Antispasmodic & gut comfort group. These ease cramping abdominal pain, spasm and trapped wind.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Antispasmodic & gut comfort |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Trapped wind and bloating
- Infant colic (wind)
- Wind after surgery or before scans and endoscopy
Common brand names
- India: Gas-O-Fast, Colicaid, Neopeptine
- Worldwide: Gas-X, Mylicon
Common side effects
- Rarely, mild nausea
- Rarely, loose stools
- Usually very well tolerated
Before taking it — precautions
- It is not absorbed into the body
- Check with a doctor if bloating is new, persistent or severe
- Some combination antacid products contain other ingredients; read the label
When to see a doctor urgently
- Severe tummy pain or a swollen hard abdomen (urgent)
- Vomiting with inability to pass wind or stools (urgent)
- Blood in stools or black stools
Not a prescription — no dose shown. The right dose of simethicone depends on age, weight, kidney/liver function and the condition, so MedDroid does not show a dose here. Always get your dose from a doctor or pharmacist and the leaflet inside the pack. General educational information only.
Frequently asked questions
Is simethicone safe for babies?
Yes, it is widely used for colic because it is not absorbed. Evidence that it helps colic is mixed.
How does it work?
It breaks up small gas bubbles into larger ones that are easier to pass.
Can I take it with other medicines?
It rarely interacts, but it may reduce absorption of levothyroxine; space them apart.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.