Opsynvi (tadalafil)
Tadalafil · PDE5 inhibitor
Used for: Erectile dysfunction and enlarged prostate symptoms.
- Available in Thailand
- YesOpsynvi is registered in Thailand
- Active ingredient
- TadalafilPDE5 inhibitor
- Prescription
- Prescription only
- Controlled substance
- NoNot narcotic or psychotropic
- Bringing it in
- AllowedTraveller rules
Source: Thai FDA official records · Last checked
What is Opsynvi?
Opsynvi is a brand of tadalafil sold in Thailand. Tadalafil is a PDE5 inhibitor used for erectile dysfunction and enlarged prostate symptoms. It is registered with the Thai FDA in 10mg as film-coated tablet, and the Thai licence holder is บริษัท แจนเซ่น-ซีแลก จำกัด. Brand names differ between countries, so outside Thailand ask for tadalafil by name (other brands include Cialis).
Is Opsynvi available in Thailand?
Yes. Opsynvi is registered with the Thai FDA. We found 2 active registrations (10mg), held by บริษัท แจนเซ่น-ซีแลก 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: Opsynvi
2 active registrations on the Thai FDA medicine register. Select a registration number to open the official record.
Registrations
| Product | Form | Legal class | Registration no. |
|---|---|---|---|
| OPSYNVI (10MG/20MG)- | film-coated tablet | Prescription | 2C 2/68 (NC) |
| OPSYNVI (10MG/40MG) | film-coated tablet | Prescription | 2C 1/68 (NC) |
Do I need a prescription for Opsynvi in Thailand?
Yes. Opsynvi 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 Opsynvi 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 Opsynvi a narcotic or controlled substance in Thailand?
No. Opsynvi (tadalafil) 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 tadalafil products in Thailand
These contain the same active ingredient as Opsynvi. They are not necessarily interchangeable: strength, form and approved uses can differ, so talk to your doctor before switching.
Thai brand names for tadalafil
See every tadalafil product in Thailand → · Thai brand names A–Z
Sources
- Thai FDA medicine register (ระบบค้นหาข้อมูลผลิตภัณฑ์ยา), active-ingredient search for “Tadalafil”, 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