Tonafil (sildenafil)
Sildenafil · PDE5 inhibitor
Used for: Erectile dysfunction and pulmonary arterial hypertension.
Thai name: โทนาฟิล
- Available in Thailand
- YesTonafil is registered in Thailand
- Active ingredient
- SildenafilPDE5 inhibitor
- Prescription
- Prescription only
- Controlled substance
- NoNot narcotic or psychotropic
- Bringing it in
- AllowedTraveller rules
Source: Thai FDA official records · Last checked
What is Tonafil?
Tonafil is a brand of sildenafil sold in Thailand. Sildenafil is a PDE5 inhibitor used for erectile dysfunction and pulmonary arterial hypertension. It is registered with the Thai FDA as film-coated tablet, and the Thai licence holder is บริษัท ที.โอ.เคมีคอลส์ (1979) จำกัด. Brand names differ between countries, so outside Thailand ask for sildenafil by name (other brands include Viagra).
Is Tonafil available in Thailand?
Yes. Tonafil is registered with the Thai FDA. We found 1 active registration, held by บริษัท ที.โอ.เคมีคอลส์ (1979) จำกัด. Registration means the product is licensed for sale in Thailand. It does not guarantee that a particular pharmacy has it in stock.
Thai FDA registered products: Tonafil
1 active registration on the Thai FDA medicine register. Select a registration number to open the official record.
Registrations
| Product | Form | Legal class | Registration no. |
|---|---|---|---|
| TONAFIL 100โทนาฟิล 100 | film - coated tablet | Prescription | 1A 54/50 (NG) |
Do I need a prescription for Tonafil in Thailand?
Yes. Tonafil is classed as a specially controlled drug (ยาควบคุมพิเศษ) under the Thai Drugs Act, so it can only be dispensed with a prescription from a doctor.
Can I bring Tonafil into Thailand?
Allowed
Allowed for personal use: up to 30 days’ supply
- Bring no more than 30 days’ supply for your own use.
- Keep it in the original container.
- Carry your prescription or a doctor’s letter.
- Medicines cannot be posted or shipped to you in Thailand. The 30-day allowance applies to medicines you carry.
Legal basis: Drugs Act B.E. 2510 (1967), section 13(4). Thai FDA: FAQs on medicines (Drugs Act B.E. 2510, s.13(4))
Is Tonafil a narcotic or controlled substance in Thailand?
No. Tonafil (sildenafil) is not a narcotic or psychotropic substance in Thailand. On the Thai FDA list it appears in the “others” group. The ordinary medicine rules apply.
Other sildenafil products in Thailand
These contain the same active ingredient as Tonafil. They are not necessarily interchangeable: strength, form and approved uses can differ, so talk to your doctor before switching.
Thai brand names for sildenafil
See every sildenafil product in Thailand → · Thai brand names A–Z
Sources
- Thai FDA medicine register (ระบบค้นหาข้อมูลผลิตภัณฑ์ยา), active-ingredient search for “Sildenafil”, retrieved 30 September 2026
- Thai FDA Narcotics Control Division, Permit for Traveller: drug list, retrieved 30 September 2026
- Thai FDA: FAQs on medicines (Drugs Act B.E. 2510, s.13(4))
Registration numbers link to the Thai FDA’s public record for each product. Spotted something out of date? Report a correction.
General information only, not medical or legal advice. Rules change, so confirm with the Thai FDA or a pharmacist before you buy, take or travel with a medicine. Medical disclaimer