Medicines & Supplements A to Z > Nidol


Last updated on 23/11/2021.

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

GENERIC NAME: Nimesulide


DRUG CLASS: Analgesics

SUB CLASS: Nonsteroidal Anti-inflammatory Drugs

USED FOR: Acute pain, including menstrual pain

– 100mg (tablets)
– 100mg (sachets)

What is Nidol for?

Nidol is a brand product that contains Nimesulide, which belongs to a class of medications called Nonsteroidal anti-inflammatory drugs (NSAIDs). It works by blocking the production of prostaglandin which helps to reduce pain. Therefore, it is used to treat acute pain including menstrual pain.

How to use it?

Nidol is available as tablets and sachets. It is only used in ages above 12 years old. The usual daily dose is 50-100 mg. 

What are the side effects of Nidol?

Common side effects of Nidol include stomach discomfort, nausea, bleeding gastric ulcer. With prolonged use, it may cause liver and kidney toxicity and increase the risk of a cardiovascular event.

Who should not take Nidol?

– Anyone who has an allergy to any components of Nidol
– Anyone who has allergic reactions after taking Aspirin or other NSAIDs. Report to your doctor or pharmacist if you experienced signs like hives, flushing or palpitation.
– People with heart failure, or uncontrolled high blood pressure
– People with active stomach bleeding or ulceration

Pharmacist Tips:

– Do not use more than one NSAIDs at the same time.
– When using a sachet, dissolve the powder in water and stir thoroughly until all is dissolved.

Common dosing schedule:
You may take Nidol with or without food. Taking with food can help to prevent stomach upset.

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

Some common medications Nidol may interact with:
– Other NSAIDs, e.g. Aspirin, Diclofenac
Diuretics, e.g. Furosemide, Hydrochlorothiazide
– SSRI antidepressants, e.g. Fluoxetine, Paroxetine

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

Where to buy Nidol in Hong Kong?

In Hong Kong, Nidol 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 Nidol 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.