Medicines & Supplements A to Z > Buscopan


Last updated on 18/10/2021.

Overview   |   Dosage   |    Side Effects   |   Precautions  |   Tips  |   Where To Buy  



DRUG CLASS: Muscle relaxants

SUB CLASS: Anticholinergic agents

USED FOR: Treatment of stomach or intestinal spasms

– 10mg (tablets)
– 20mg/ml (injection)

What is Buscopan for?

Buscopan is a brand product that contains hyoscine, which is an anticholinergic agent. It helps reduce muscle spasms in the stomach and intestines by blocking nerve impulses that stimulate movement of the stomach.

How to use it?

Buscopan is available as tablets and injection. The dosage of oral Buscopan tablets is listed below:

Adults and children above 12: 20 mg four times daily.
Children between 6-12: 10 mg three times daily.

What are the side effects of Buscopan?

Common side effects of Buscopan include dry mouth, blurred vision, dizziness, sleepiness and constipation.

Who should not take Buscopan?

– People who are allergic to ​​hyoscine butylbromide, atropinics, or any component of the formulation
– Anyone with angle-closure glaucoma
– Anyone with benign prostatic hyperplasia (BPH)

Pharmacist Tips:

This medicine may cause drowsiness. Avoid driving or operate machinery until you know how this medicine affects you.

Common dosing schedule:
Buscopan can be taken with or without food. You should swallow the tablet whole and take a full glass of water.

This schedule is for reference only, adjustments may be made according to individual needs.

Some common medications Buscopan may interact with:
– Anticholinergics, e.g. Ipratropium, Tiotropium
– Antihistamines, e.g. Doxylamine, Hydroxyzine

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Buscopan in Hong Kong?

In Hong Kong, Buscopan tablets are pharmacy only medicine and can be purchased without a prescription in a registered pharmacy under the supervision of a pharmacist. They can be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.

In Hong Kong, Buscopan injection is a prescription only medicine, and requires a prescription from a doctor to be purchased in a pharmacy. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.

For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at

Need more information?

For detailed information about the use of Buscopan in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.