thaimeds

Can you bring Sildenafil (Viagra, Revatio) to Thailand?

Sexual and reproductive health. Used for erectile dysfunction.

You can bring up to 30 days' supply of sildenafil for your own use, ideally with your prescription. In Thailand it is officially a prescription-only (specially controlled) medicine.

Bringing it into Thailand

Allowed with a prescription, up to 30 days

Thai FDA lets travellers bring medicines that are not narcotics or psychotropic substances for their own use, up to 30 days' supply. Keep it in the original labelled packaging and carry your prescription or a doctor's letter. No Thai FDA permit is needed for this amount. If you need more than 30 days, contact the Thai FDA Medicines Regulation Division before you travel.

Getting it in Thailand

Prescription from a Thai doctor needed

Thai pharmacy references describe sildenafil as a specially controlled drug that should be dispensed on a doctor's prescription, not bought freely at an ordinary pharmacy. A doctor at a hospital or clinic can prescribe it. Thai authorities regularly find sildenafil-type drugs hidden in so-called herbal sex products, so avoid unregistered products sold online or on the street.

Thai classification
Specially controlled drug
Last checked
13 November 2026
Source quality
Medium: official and secondary sources

What to carry

  • Original packaging with the label visible
  • Prescription or doctor's letter in English, with the generic name and dose
  • No more than 30 days' supply

Good to know

  • Thai FDA has repeatedly found undeclared sildenafil-type drugs in herbal 'sex enhancement' products.
  • Do not combine with nitrate heart medicines.

Rules change. Before you travel, confirm with the Thai FDA (permitfortraveler.fda.moph.go.th) or the Royal Thai Embassy in your country. This page is information, not medical or legal advice.

Sources

  1. Thai FDA: Bringing of health products into the Kingdom of Thailand
  2. Thai FDA Narcotics Control Division: Knowledge on import for personal use
  3. Mahidol University Faculty of Pharmacy Drug Information Centre: sildenafil Q&A
  4. Amarin TV (Jul 2024): sildenafil and tadalafil as specially controlled drugs
  5. Bangkok Post: Department of Medical Sciences warns on PDE5 drugs in herbal products