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Medication guide

Pyrantel Pamoate

Treats confirmed pinworm infection, not every cause of anal itching.

Check the name, strength and form on your own prescription or package.

Brand
Combantrin
Form
Oral pinworm treatment
Guidance checked
2026-09-08

About this medication

Treats confirmed pinworm infection, not every cause of anal itching.

How to use it

Use the product’s weight-based chart. Pyrantel base and pamoate amounts differ. Ask about household treatment and repeat timing.

Pregnancy and breastfeeding

Pregnancy requires medical direction; discuss breastfeeding.

Before you use it

Children under two or under 12 kg and people with liver disease need medical advice.

Possible side effects

Cramps, nausea, diarrhoea, headache or dizziness.

When to get help

Persistent symptoms after repeat treatment or significant adverse effects require assessment.

Other medicines and products

Do not combine with other pinworm medicines without advice.

Missed doses, storage and accidental exposure

Follow your own product’s missed-dose instructions. If you are unsure, ask the Care365 clinical team before taking an extra dose. Contraceptives, injections and modified-release medicines may need a specific plan.

Keep the original packaging and follow its storage, expiry and disposal instructions. Keep medicines away from children and pets. Ask about refrigeration, after-opening limits and safe sharps disposal when relevant.

For suspected overdose or accidental swallowing, contact poison control or urgent medical care promptly. Call emergency services for breathing difficulty, collapse or a seizure.

References and product information

Sources checked .

Sources checked 2026-09-08. Safety sections are highlights; consult the full product information for complete warnings and instructions.

Check the Canadian Drug Product Database by product name or DIN for current product information.

For this guide, we could not identify a directly matching Pharmasist medication page. Check the exact name, strength and DIN on your product in Health Canada's Drug Product Database. A product monograph is the official detailed prescribing document when one is available for that product.

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