Thailand’s controlled-cannabis framework identifies a practitioner-issued prescription, not a general government “medical cannabis card.” A plastic card, digital pass, QR code, membership record or payment receipt may belong to a private service, but it does not by itself prove that cannabis flower was prescribed.
The official controlled-herb prescription form is PT 33, also written PorThor 33 or ภ.ท.33. It is a prescription document, not a government patient card. If you want the application and assessment process, use our separate guide to getting a cannabis prescription in Thailand. This page answers the narrower question: what does a “cannabis card” actually prove?
Is there an official Thai government cannabis card?
The current official material for prescribed cannabis flower points to PT 33. DTAM’s form records the prescriber, professional licence or certificate, patient identity, condition, daily amount, treatment days and total prescribed quantity. The form says a prescription must not exceed 30 days per issuance. View DTAM’s official PT 33 form.
That document is different from a wallet card or app screen. A private company can issue a card for identification or account access, but the card does not become a government prescription because it carries a cannabis leaf, clinic logo or QR code.
What might a private cannabis card be?
A card described as a “medical cannabis card” may be one of several things:
- a dispensary or clinic membership card;
- an account or patient number used inside a private system;
- a shortcut to records stored in a patient portal;
- a discount, loyalty or subscription card;
- a summary created by a foreign medical-cannabis program.
Any of these may have an administrative purpose. The important question is not whether the card looks official, but whether there is separate, valid prescription documentation behind it.
What does a card not prove?
Standing alone, a card does not establish that:
- an authorized Thai practitioner examined the patient;
- the practitioner issued a current prescription for cannabis flower;
- the cardholder’s condition, dosage and treatment period appear on PT 33;
- a particular shop can lawfully dispense against the underlying document;
- the document remains current or covers another purchase.
A QR code proves only that the code resolves somewhere. It does not prove who created the record, whether the issuer is authorized or whether the underlying information is current.
Does a foreign cannabis card work in Thailand?
Thailand’s government guidance for tourists says visitors must have a valid prescription issued in Thailand by a licensed medical professional before buying, using, carrying or transporting cannabis flower. A foreign card can be useful medical history, but it does not replace the Thailand-issued prescription described in that guidance. Read the Thai government notice for tourists.
How to check a card claim
Before paying for a card or relying on one, ask the issuer:
- Is this only a membership or identity card?
- What separate prescription document supports it?
- Who is the named prescriber, and what is their profession and registration information?
- Where can the underlying prescription be viewed or obtained securely?
- What period and prescribed quantity does that document cover?
Verify the provider through an independently obtained contact or the relevant professional regulator. A logo, laminate, app interface or downloadable certificate is not an independent verification method. Do not post prescription, passport or patient information in a public review or chat.
If you already paid for a card
Ask for an invoice, the issuer’s legal identity, the purpose of the card and a secure copy of any underlying clinical record or prescription. If the service cannot identify the prescriber or explain the separate document, do not assume the card authorizes purchase or possession.
For the medical-review steps, required information and possible outcomes, continue to the PT33 prescription process guide. For sales and travel restrictions beyond documentation, read the current Thailand cannabis law guide.
Bottom line
A “medical cannabis card” in Thailand is not automatically a government document. Treat it as a private credential unless its issuer can show the separate, valid prescription and identify the authorized practitioner behind that prescription. PT 33—not the card design—is the relevant official prescription record for controlled cannabis flower.
Updated 6 September 2026 against the official sources linked above. This page explains document types and does not determine whether cannabis is medically appropriate for any person.
