Medicines & Supplements A to Z > Gabapentin


Last updated on June 26, 2019.

Overview   |   Dosage   |   Side Effects   |   Where To Buy  

GENERIC NAME: Gabapentin


COMMON BRANDS IN HONG KONG: Neurontin, Gabapentin Teva, Neuran

What is Gabapentin for?

Gabapentin belongs to a group of medications called anticonvulsants. It works by reducing the pain signals sent out from the damaged nerves and can be used as adjunctive therapy or monotherapy for focal seizures, neuropathic pain, prevention of migraines, and menopausal symptoms, particularly hot flushes in women.

How to use it?

Gabapentin can be taken orally as tablets or capsules. The dosages for some different uses are listed below: 

For neuropathic pain



Day 1: 300 mg once daily 

Day 2: 300 mg twice daily

Day 3: 300 mg 3 times daily 


Day 1: 300 mg 3 times daily

Then increase 300 mg every 2-3 days in 3 divided doses 

Dosage should be adjusted according to response and the maximum dose is 3.6 g per day

For prevention of migraine 



300 mg daily, then increase to up to 2.4 g daily in divided doses; Adjust the dosage according to response

For menopausal symptoms, particularly hot flushes



300 mg 3 times daily, initial dose should be lowered and titrated up over three days

What are the side effects of Gabapentin?

Common side effects of Gabapentin include swelling of the arms and legs, weight gain, dizziness and drowsiness, and dry mouth.

Where to buy Gabapentin in Hong Kong?

In Hong Kong, Gabapentin 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 Gabapentin 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.