Medicines & Supplements A to Z > Zolpidem


Last updated on July 3, 2019.

Overview   |   Dosage   |   Side Effects   |   Where To Buy  



COMMON BRANDS IN HONG KONG: Stilnox / Stilnox CR (controlled-release), Zolnox, Vicknox

What is Zolpidem for?

Zolpidem is a non-benzodiazepine hypnotic: it can increase the availability of certain chemicals in your brain that induce sleepiness. It is therefore a common medicine used to manage short-term insomnia.

How to use it?

Zolpidem can be taken by mouth as conventional tablets or modified-release tablets. The adult dose of conventional tablets is 5-10 mg daily at bedtime for a maximum of 4 weeks. Use the lowest possible dose, and do not repeat a dose if you wake up during the night. If you are taking modified-release tablets (Stilnox CR), you should swallow the whole tablets and not to chew or crush them. The usual dose for modified-release tablets is 6.25-12.5 mg daily at bedtime.

What are the side effects of Zolpidem?

Common side effects of Zolpidem include temporary memory loss, anxiety, diarrhoea, nausea and vomiting, dizziness, fatigue, hallucination, and headache. There have been rare reports of injury because of complex sleep behaviors, including sleepwalking, sleep driving, and engaging in other activities while not fully awake.

Where to buy Zolpidem in Hong Kong?

In Hong Kong, Zolpidem 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 Zolpidem 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.