July 2025: Thailand’s New Cannabis Regulations

Big changes are rolling through Thailand’s cannabis landscape. As of June 2025, the government has reclassified cannabis as a controlled substance, meaning you’ll now need a doctor’s prescription to legally purchase or consume it.

For many of us who have embraced the plant’s benefits, this sudden shift feels frustrating, confusing, and even disheartening. But rather than panic, this is a moment to adapt, organize, and elevate the conversation.

Here’s everything you need to know, and how Siam Green is stepping up.

What’s Changed?

Thailand, once hailed as Asia’s cannabis pioneer, has implemented new rules that restrict access to cannabis products unless they’re medically prescribed. Key updates include:

• Prescriptions required: Only certified healthcare professionals (doctors, pharmacists, dentists, and traditional healers) can issue a prescription for cannabis use, valid for up to 30 days. Siam Green can issue you these through our in house doctors at each branch.
• Strict dispensary compliance: Shops must now operate as medical dispensaries, complete with certified staff and controlled inventory tracking. All cannabis flower must be purchased from licensed cannabis facilities with quality certificates such as GACP or GAP.
• Something that hasn’t changed but needs to be re-emphasized: Smoking in public remains illegal! Please be responsible and do not smoke around public areas, or groups of people. 

What This Means for You

If you’re a long-time medical user or a conscious canna-curious newcomer, this means one thing: you’ll need a prescription to continue your cannabis journey, legally and safely.

That may sound intimidating, but here’s the good news:

Siam Green Has You Covered

We believe in safe, informed, and responsible access to cannabis. That’s why all Siam Green branches now have in-house medical professionals ready to consult and issue prescriptions directly, so you can continue your cannabis journey without stress or stigma.

What you’ll find at Siam Green:

• Licensed doctors on-site for consultations and prescriptions

• Products sourced from approved, pharmaceutical-grade growers

• Guidance on the correct use, dosage, and strain for your needs

• Transparency and traceability for every product on our shelves

Staying Informed: Join the Thailand Cannabis Network (TCN)

We’re stronger together. That’s why we’re proud to support and collaborate with the Thailand Cannabis Network (TCN)– a community-led movement dedicated to sharing accurate information, policy updates, and education on cannabis in Thailand.

In a time of misinformation and uncertainty, building a strong and well-informed community is more important than ever. When we stay connected, we empower each other to understand, comply, and thrive within this new legal landscape.

If you’re a patient, advocate, or just canna-curious, TCN is your hub to:

• Stay ahead of policy changes

• Join advocacy efforts

• Connect with experts and allies

• Help shape the future of cannabis in Thailand, responsibly

• Gain clarity, share pain points, and get access to the right people during times of need

  Visit www.tcnetwork.me to sign up!

The Path Forward: Adaptation, Not Resistance

We may be entering a new era for cannabis in Thailand, but it doesn’t have to be the end of progress. In fact, it’s an opportunity to reshape the conversation from one of casual recreation to one of intentional, informed, and respectful use.

At Siam Green, we’re committed to helping you:

• Understand the rules

• Access the right resources

• Build community

• And most importantly: continue your journey with cannabis safely and confidently

Let’s move forward, together, informed, and empowered.

#FindYourselfInTheKnow