Used for: Insomnia

What is Stilnox for?

Stilnox is a brand product that contains Zolpidem, which is under the class of non-benzodiazepine hypnotic. It works by enhancing the effect of a certain chemical in your brain in order to induce sleepiness. It can be used short-term for insomnia.

How to use it?

Stilnox is available as conventional tablets and modified-release tablets.


The usual adult dose for conventional tablets is 5 mg (females) and 5-10 mg (males) daily immediately before bedtime with at least 7-8 hours of planned sleep before waking for a maximum of 4 weeks.


For modified-release tablets, the usual dose is 6.25 mg (females) and 6.25-12.5 mg (males) daily immediately before bedtime with at least 7-8 hours of planned sleep before waking for a maximum of 4 weeks.

What are the side effects of Stilnox?

Common side effects of Stilnox include nausea and vomiting, dizziness, fatigue, temporary memory loss, and headache. There are also reported rare cases of abnormal sleep behaviours like sleepwalking, sleep driving when taking this medicine.

Who should not take Stilnox?

  • People who are allergic to zolpidem of any component of the formulation
  • Anyone who has experienced abnormal sleep behaviors

Pharmacist Tips:

  • If you have experienced abnormal sleeping behaviors such as sleep-walking, report to your doctor or pharmacist immediately and discontinue zolpidem.
  • If you notice changes in your thinking or behaviors, tell your doctor or pharmacist.
  • Stilnox will cause drowsiness and should be taken right before sleep.
  • Use the lowest possible dose, and do not double the dose as it could cause extreme drowsiness and severe adverse effects.
  • Avoid alcohol use while taking this medication.

Common dosing schedule:
Stilnox should be taken at bedtime, and should not be taken with or immediately after a meal.


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


Some common medications Stilnox may interact with:

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

Where to buy Stilnox in Hong Kong?

In Hong Kong, Stilnox 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 Stilnox 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.

Available dosage
  • 6.25mg / 12.5mg (Modified-Release Tablets)
  • 10mg (Tablets)
Drug class
Sub class
Generic Names
Other drugs in same class
Used for: Insomnia
Chinese name:
Chloral Hydrate
Used for: Sedation
Chinese name:
Used for: Insomnia
Chinese name:
Used for: Insomnia
Chinese name:
Used for: Insomnia
Chinese name: