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Cannabis for Thailand

Last updated: April 2026

Thailand Cannabis Law 2026

Legal status, PT 33 prescriptions, penalties, and what tourists need to know

Quick Summary: Thailand Cannabis Law 2026

  • Cannabis is medical-only since June 25, 2025. Recreational use is illegal.
  • Products above 0.2% THC require a PT 33 prescription, valid 30 days, max 30g/month
  • CBD under 0.2% THC is freely available to anyone without a prescription
  • 11,136 licensed dispensaries remain out of 18,433. Another 4,587 licenses expire in 2026.
  • Possession without a prescription: up to 25,000 THB fine and 3 months jail
  • Public consumption is illegal even with a valid prescription
  • Tourists can get a PT 33 from licensed Thai clinics. Foreign prescriptions are not valid.

Is Cannabis Legal in Thailand?

Is cannabis legal in Thailand? Only for medical purposes. Since June 25, 2025, Public Health Minister Somsak Thepsuthin's ministerial notification reclassified cannabis flower as a "controlled herb." Any product above 0.2% THC now requires a PT 33 prescription, valid for 30 days with a maximum of 30 grams per month. CBD products below 0.2% THC remain freely available without any prescription. The recreational era is over. Of the 18,433 dispensaries that once operated, 7,297 have closed. Only 11,136 licensed dispensaries remain, and another 4,587 licenses expire later in 2026. Tourists and Thai nationals alike can access cannabis through the PT 33 system, but foreign prescriptions are not accepted. Possession without a valid prescription carries fines up to 25,000 THB and up to 3 months in jail.

Thailand Cannabis Law Timeline

How Thailand went from prohibition to deregulation and back to medical-only:

2018
2018

Medical Legalization

Thailand became the first Southeast Asian country to legalize medical cannabis. Access was limited to government hospitals and approved research programs.

2022
2022

Decriminalization

Cannabis was removed from the Category 5 narcotics list. Possession and cultivation became legal overnight. Thousands of dispensaries opened with minimal regulation.

2025
June 2025

Medical-Only Re-Regulation

Minister Somsak Thepsuthin's notification reclassified cannabis flower as a controlled herb. Products above 0.2% THC now require a PT 33 prescription. Sales to anyone under 20 prohibited.

2026
Jan 2026

Enforcement Crackdown

New rules require medical supervision at all dispensaries. Online sales and vending machines banned. 7,297 of 18,433 shops closed after failing to comply. Active police enforcement begins.

2026
2026

Current Status

Medical-only framework under active enforcement. 11,136 licensed dispensaries remain, with 4,587 more licenses expiring this year. PT 33 prescriptions required for THC products. CBD freely available. The Cannabis & Hemp Act still awaits parliamentary vote.

What's Legal vs What's Illegal

Under Thailand cannabis law 2026, the line between legal and illegal is clear:

Legal

  • Buy CBD products (under 0.2% THC) from any licensed shop without a prescription
  • Purchase cannabis flower or THC products at a licensed dispensary with a valid PT 33 prescription
  • Possess up to 30g per month of prescribed cannabis with a current PT 33
  • Grow cannabis with a valid cultivation license from the Thai FDA
  • Use prescribed cannabis in private settings only
  • Operate a cannabis business with proper Thai FDA licensing and on-site medical supervision
  • Import or export hemp seeds with government permits

Illegal

  • Possess cannabis flower or any product above 0.2% THC without a PT 33 prescription
  • Sell THC products to anyone under 20 years old
  • Run a dispensary without a license or without a certified practitioner on-site
  • Grow cannabis without a cultivation permit
  • Smoke or consume cannabis in any public space, temple, school, or government building
  • Drive under the influence of cannabis
  • Sell cannabis online or through vending machines
  • Advertise cannabis for recreational use
  • Use a foreign prescription in place of a Thai PT 33

The PT 33 Prescription System

The PT 33 (known in Thai as ปท. 33) is Thailand's official prescription for cannabis products above 0.2% THC. Only practitioners authorized by the Ministry of Public Health can issue one: medical doctors, traditional Thai medicine practitioners, pharmacists, dentists, and Chinese medicine doctors. Each prescription is registered digitally in a central government database, stays valid for 30 days, and allows up to 30 grams per month. You can fill it at any licensed dispensary in the country. Foreign prescriptions are not valid. Read our complete PT 33 prescription guide for the step-by-step process, costs, and clinic locations.

Cannabis Penalties in Thailand

Thailand enforces cannabis violations with real consequences. Here are the specific penalties:

Offense Penalty Severity
Possession without a PT 33 prescription Up to 25,000 THB fine and/or up to 3 months imprisonment High
Selling without a license Up to 3 years imprisonment and/or fine up to 300,000 THB High
Selling to anyone under 20 Up to 5 years imprisonment and/or fine up to 500,000 THB High
Cultivating without a permit Fine up to 200,000 THB and seizure of all plants Medium
Public smoking or consumption Fine up to 25,000 THB, even with a valid prescription Medium
Driving under the influence Same as alcohol DUI: up to 1 year imprisonment and/or fine up to 20,000 THB High

These penalties are based on current ministerial notifications. The Cannabis & Hemp Act, still pending in parliament, may revise them. Verify current rules with local authorities before acting.

The Cannabis & Hemp Act: Where Things Stand

Thailand's Cannabis & Hemp Act, intended to be the country's comprehensive cannabis legislation, remains stuck in parliament as of March 2026. The bill cleared its first reading but has not passed the second or third readings needed to become law. The February 8, 2026 election returned parties that broadly support the current medical-only approach.

Without this Act, all current cannabis rules rest on ministerial notifications and administrative orders from the Ministry of Public Health. These carry legal weight but can be changed faster than parliamentary law. Until the Act passes, expect the rules to keep changing.

Key provisions in the proposed Act:

  • Codifies the minimum purchase and possession age at 20
  • Designates cannabis-free zones around temples, schools, and government buildings
  • Standardizes licensing across dispensaries, clinics, farms, and manufacturers
  • Establishes a seed-to-sale tracking system for all cannabis products
  • Sets statutory penalties replacing current ministerial-level enforcement

All Legal Guides & Articles

Detailed guides on Thai cannabis law, the PT 33 prescription system, tourist rules, and business licensing:

Further Reading

Related articles from our blog:

Frequently Asked Questions

Is cannabis legal in Thailand in 2026?

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Cannabis is legal in Thailand only for medical use. Since June 25, 2025, any product above 0.2% THC requires a PT 33 prescription from a Thai-licensed practitioner. CBD products below 0.2% THC are freely available. Recreational cannabis is no longer legal.

Do I need a prescription for cannabis in Thailand?

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Yes, for anything above 0.2% THC. You need a PT 33 prescription issued by a doctor, pharmacist, or traditional medicine practitioner licensed by the Ministry of Public Health. Each prescription lasts 30 days and covers up to 30 grams per month. CBD products under 0.2% THC require no prescription.

Can tourists buy cannabis in Thailand?

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Tourists can obtain a PT 33 prescription from licensed private clinics in Thailand and then purchase THC products legally. CBD is available without a prescription. Foreign prescriptions are not accepted. Do not take any cannabis products out of the country.

What is a PT 33 prescription?

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The PT 33 is Thailand's official medical cannabis prescription form. It is issued by authorized practitioners, digitally registered in a central government database, valid for 30 days, and allows purchase of up to 30 grams of cannabis per month from any licensed dispensary.

What are the penalties for cannabis in Thailand?

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Possession without a prescription carries fines up to 25,000 THB and up to 3 months in jail. Selling without a license: up to 3 years and 300,000 THB. Selling to anyone under 20: up to 5 years and 500,000 THB. Public smoking: fines up to 25,000 THB.

Is CBD legal in Thailand without a prescription?

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Yes. CBD products containing less than 0.2% THC are legal and available without a prescription. Both Thai citizens and tourists can purchase them from licensed dispensaries and retail shops. No PT 33 or medical consultation is required for CBD.

Can I smoke cannabis in public in Thailand?

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No. Public consumption is illegal even if you hold a valid PT 33 prescription. This includes streets, parks, restaurants, temples, schools, and government buildings. Fines reach 25,000 THB. You may only consume cannabis in private settings.

How much cannabis can I possess in Thailand?

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With a valid PT 33 prescription, you can possess up to 30 grams per month. Without a prescription, possessing any cannabis flower or product above 0.2% THC is illegal and carries penalties of up to 25,000 THB in fines and 3 months imprisonment.

Legal Disclaimer

This page is for educational purposes only and is not legal advice. Cannabis regulations in Thailand change frequently through ministerial notifications and administrative orders. Consult a qualified lawyer or verify with Thai government authorities before acting on any information here. Current as of April 2026.