Medicines & Supplements A to Z > Nifedipine


Last updated on July 12, 2019.

Overview   |   Dosage   |   Side Effects   |   Where To Buy  


GENERIC NAME: Nifedipine


COMMON BRANDS IN HONG KONG: Niften, Adalat 拜新同, Nifecard

What is Nifedipine for?

Nifedipine belongs to a class of medications called calcium channel blockers like Diltiazem. It is used to treat Raynaud’s syndrome and high blood pressure, as well as to prevent angina.

How to use it?

Nifedipine can be taken by mouth as conventional or modified-release tablets or capsules. For the modified-release medicines, you should swallow whole and do not crush or chew them. 

The usual starting dose of immediate-release medicines is 5 mg 3 times daily with a maximum of 20 mg 3 times daily. The usual starting dose for long acting forms of Nifedipine are 10 mg every 12 hours (Adalat retard) or 20-30 mg once daily (Adalat GITS, Nifedipine long-acting (LA), Nifecard XL). Usual maintenance doses for long acting forms of Nifedipine are between 20-90 mg once daily.

What are the side effects of Nifedipine? 

Common side effects of Nifedipine include dizziness, flushing, headache, palpitations, lower leg swelling, rash, and fast heart rate.

Where to buy Nifedipine in Hong Kong?

In Hong Kong, Nifedipine 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

For detailed information about the use of Nifedipine 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.