Medicines & Supplements A to Z > Rivaroxaban


Last updated on July 26, 2019.

Overview   |   Dosage   |   Side Effects   |   Where To Buy  

GENERIC NAME: Rivaroxaban 



What is Rivaroxaban for?

Rivaroxaban belongs to a class of medications called factor Xa inhibitors. It works by blocking the clotting factors and hence slows down the process of blood clot formation. It can be used to prevent or treat blood clots from different causes. You may be prescribed Rivaroxaban after hip or knee replacement or for the prevention of stroke in people with atrial fibrillation (a type of irregular heart rhythm). It can also be used to treat venous thrombosis (blood clot formed within a vein).

How to use it?

Rivaroxaban is taken by mouth as tablets. The usual adult doses for different uses are listed as follows:

For prevention of blood clot after hip or knee replacement

10 mg once daily, usually starting 6-10 hours after the operation

For prevention of stroke in people with atrial fibrillation

20 mg once daily taken with meals

For treating blood clots (venous thrombosis)

15 mg twice daily taken with meals for 21 days, then continue with 20 mg once daily taken with meals

Lower doses of Rivaroxaban are frequently used in the elderly and in people with reduced kidney function.

What are the side effects of Rivaroxaban? 

The most common side effect of Rivaroxaban is bleeding. You must tell your doctor if you notice any signs of bleeding like unexplained bruises and nose or gum bleeds, as well as signs of internal bleeding like blood in your urine or stool. 

Where to buy Rivaroxaban in Hong Kong?

In Hong Kong, Rivaroxaban 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 Rivaroxaban 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.