Medical cannabis in Thailand

How to get a medical cannabis prescription in Thailand

Cannabis is legal in Thailand for medical use only, and every purchase needs a valid prescription on the Thai form ภ.ท.33, written "PT 33" in English. Here is what the prescription is, who can get one, and how the visit works, whether you live here or you are visiting.

This page is general information about the Thai medical-cannabis framework, not medical advice. Whether cannabis is right for you is a decision for the licensed practitioner who assesses you.

Find your nearest branch

What the ภ.ท.33 (PT 33) prescription is

Cannabis flower is a controlled herb under Thai Ministry of Public Health rules. It is legal for medical use only, and to buy it you need a valid medical-cannabis prescription on form ภ.ท.33. A licensed practitioner issues the prescription, and it is valid for up to a 30-day supply.

Who can get one, visitors included

Anyone aged 20 or older can be assessed, visitors from outside Thailand included. The decision rests entirely on the practitioner's medical assessment during your consultation. Prescriptions and medical cards from other countries are not valid in Thailand, so you are assessed here. Carrying cannabis across the border in either direction is prohibited.

How the visit works

Bring your passport or photo ID. You must be 20 or older.
Walk in to any Siam Green branch during opening hours and speak with the team. No appointment is needed.
Our team guides you through the PT 33 and practitioner process. The consultation and assessment are carried out by a licensed practitioner.
If cannabis is medically appropriate for you, the practitioner issues your ภ.ท.33 (PT 33) prescription, valid for up to a 30-day supply.

What to bring

A passport or photo ID.
Proof you are 20 or older, which your passport or ID covers.
Nothing from home is required. A prescription or medical card from another country is not valid here anyway.

Rules worth knowing while you are here

Public consumption is prohibited and can lead to fines.
Keep everything in its original labelled packaging, together with your prescription.
Do not carry cannabis across the border in either direction.

Questions

Prescription FAQ

Do tourists need a prescription too?

Yes. Everyone needs a valid ภ.ท.33 prescription from a licensed practitioner in Thailand, visitors included. Your passport works as your ID.

Does Siam Green Co help with the PT 33 and practitioner process?

Yes. Our team guides you through the PT 33 and practitioner process. The assessment and the prescription come from a licensed practitioner.

How long is the prescription valid?

For up to a 30-day supply.

Can I use a prescription or medical card from my home country?

No. Only a prescription from a licensed practitioner in Thailand is valid here.

Do I need to book ahead?

No. Walk in during opening hours at any branch and the team will guide you.

Start at your nearest branch.

Our team guides you through the PT 33 and practitioner process. Walk in during opening hours, bring your passport, and we will take it from there.

Phrom Phong → Silom → Nana → Chinatown → Chaweng →

Questions first? Call (+66) 096 893 0545, chat on LINE, or email info@siamgreenco.com.