How to get a cannabis prescription (PT33) in Bangkok
A visitor's legal route from clinic to counter.
To buy cannabis flower, the THC-containing bud, legally in Thailand, you first need a prescription on form PT33 issued by a licensed Thai practitioner. Get a consultation at a Thai clinic, receive your PT33 prescription, which covers up to 30 days of use, then visit a licensed dispensary in person with your prescription and passport. You must be 20 or older, and Thai law prohibits online sales and delivery.
What form PT33 is
As of 2026, cannabis flower in Thailand is classified as a controlled herb. It can only be sold by licensed dispensaries, and only to customers holding a prescription issued by a licensed Thai practitioner. That prescription is written on form PT33 under the Ministry of Public Health's controlled-herb regulations, and it is the document a dispensary must see before dispensing cannabis flower.
Since 2025, cannabis flower may only be dispensed to holders of a PT33 prescription, issued by a doctor, a Thai traditional medicine practitioner, or another practitioner authorized by law. The form states the quantity you may receive and the duration of use.
The form itself does not list qualifying conditions. When the Department of Thai Traditional and Alternative Medicine signed off the current version on 30 June 2025, for use from 1 July 2025, the fifteen symptom groups that had appeared on the draft were removed and replaced with an open field for the practitioner to complete. So there is no official checklist to measure yourself against before you go. Whether cannabis is appropriate for you is a judgement the practitioner makes at the consultation, within the practice guidelines of their own profession. A dispensary cannot make that judgement, and neither can a website.
This route is open to tourists. Visitors can buy cannabis legally in Thailand under the medical framework by following the same steps as residents, and at the dispensary your passport works as your ID.
Getting your PT33, step by step
Consult a licensed Thai practitioner
Get an assessment from a doctor, Thai traditional medicine practitioner, or another licensed practitioner to determine whether medical cannabis is suitable for you. Clinics across Bangkok offer same-day consultations.
Our staff can point you to partner clinics nearby. Just ask.
Receive your prescription (form PT33)
If the practitioner considers it appropriate, they issue a prescription on form PT33 stating the quantity and duration of use. A prescription covers up to 30 days of use, so it is not an open-ended permit.
Bring the right documents
You need two documents: your PT33 prescription and your passport (or Thai ID card). We check both on every visit, and no purchase can happen without them.
Visit the dispensary in person
At the counter, our on-site practitioner checks your documents, dispenses the product per your prescription, records the dispensing as required by law, and walks you through safe use. There is no webshop and no menu online; every purchase happens at the counter.
In person only. Thai law prohibits online sales and delivery.
Use responsibly and keep it in Thailand
Smoking cannabis in public places is treated as a public nuisance under Thai law and carries penalties, and consumption is not allowed on our premises. Use only in private, following your practitioner's guidance. Never take cannabis across international borders when you leave; finish or dispose of any product before departure.
Good to know before you go
You must be 20 years of age or older. Thai law prohibits sales to anyone under 20, to pregnant women, and to breastfeeding women. We check an ID card or passport on every visit.
Every clinic runs its own consultation process and sets its own fee, so check the details directly with the clinic before you go.
When you are ready to visit: The Weed Shop is at 94/1 Srinagarindra Road, Nong Bon, Prawet, Bangkok 10250, Thailand, a short walk from Paradise Park shopping mall and near the MRT Yellow Line. The shop is open daily from noon to midnight, and a licensed practitioner is on site during opening hours.
Your PT33 questions, answered
How long does a PT33 prescription last?
Does form PT33 list which conditions qualify?
What do I need to bring to the dispensary?
Can I get the consultation and the prescription on the same day?
What happens if I arrive at a dispensary without a prescription?
Official sources
The rules described in this guide are based on these primary references:
Practices and prohibitions under the Controlled Herb (Cannabis) Announcement B.E. 2568 (2025), official guidance published by Thailand's Government Public Relations Department (in Thai). The announcement was published in the Royal Gazette on 25 June 2025 and has been in force since 26 June 2025.
Division of Medical Cannabis, Department of Thai Traditional and Alternative Medicine, the regulator's official portal for current rules, licensing, and announcements (in Thai).
Laws change faster than websites. Treat this guide as orientation, and confirm the current rules with a licensed practitioner or official Thai sources before you act on them.
This guide presents general education about legal access to medical cannabis in Thailand. It is not legal or medical advice, it does not advertise or offer cannabis flower for sale, and no products can be viewed or purchased through this site. Consult a doctor or licensed practitioner before using any cannabis product. Thai cannabis regulations change frequently; rules stated here reflect our understanding as of August 2026.