Reviewed by the ThaiCannaMed medical team | Last updated: August 2026
A PT33 cannabis prescription in Thailand is the official medical document used to authorise a named patient to receive controlled cannabis flower after an assessment by an authorised practitioner. It records who prescribed the cannabis, why it was considered medically appropriate, how much may be supplied and the treatment period. The prescription is not a recreational permit, a shop membership or paperwork that can be bought without a genuine consultation.
This guide explains the PT33 itself: who can issue it, what appears on the form, how PT33 differs from PT28, what patients need for a consultation and how the document is used at a registered dispensary. Patients ready to begin can use the ThaiCannaMed patient consultation service, while those who prefer help in a store can locate a participating Green Network dispensary. Find out about getting a PT33 cannabis prescription in Thailand.
PT33 in 60 Seconds
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PT33 fact |
Answer |
|---|---|
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What it is |
The official prescription form for controlled cannabis flower, commonly written in English as P.T.33 or Phor Thor 33. |
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Who issues it |
An authorised practitioner after a real medical assessment. ThaiCannaMed consultations use licensed Thai Traditional Medicine practitioners through Wonderland Clinic. |
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Treatment period |
No more than 30 days. A new assessment and prescription are required for continued treatment. |
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Quantity |
The practitioner decides the medically appropriate amount. DTAM guidance says cannabis flower should not exceed 30 grams per month. |
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Patient documents |
Thai ID for Thai patients or a valid passport for international visitors, plus honest medical information and details of relevant medication. |
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Where it is used |
At a registered dispensary that can verify the prescription and record the authorised sale. Green Network stores already support the ThaiCannaMed workflow. |
Official form: Royal Thai Government Gazette, PT33 form.
What a PT33 Cannabis Prescription in Thailand Authorises
PT33 is formally a prescription for controlled cannabis flower. People sometimes call it a Thai cannabis medical certificate, but that search phrase is not the most precise description. The document does more than confirm that a consultation occurred. It records a professional decision, the patient, the treatment directions, the authorised quantity and the prescribing practitioner’s credentials.
A valid prescription supports the patient’s lawful purchase and possession of the amount supplied for personal medical treatment. It does not authorise recreational sales, unlimited purchasing, sharing, resale, public smoking or transport across an international border. Other cannabis items, particularly extracts or finished products, can fall under different rules, so this guide focuses on cannabis flower.
That’s why it’s important to know about how to PT33 cannabis prescription in Thailand.
Who Can Issue PT33 and Who Makes the Medical Decision?
The official form provides for prescribing by authorised practitioners from seven professional categories: medical doctors, dentists, pharmacists, Thai Traditional Medicine practitioners, applied Thai Traditional Medicine practitioners, Traditional Chinese Medicine practitioners and recognised folk healers. The practitioner must work within the authority and standards of the relevant profession.
ThaiCannaMed connects patients with licensed Thai Traditional Medicine practitioners operating through Wonderland Clinic. The practitioner, not the dispensary, decides whether cannabis is appropriate and what quantity is medically justified. A shop can help the patient access the consultation, but staff cannot promise approval or prescribe on the practitioner’s behalf. For more on checking the professional behind a consultation, read the guide to medical cannabis doctors in Thailand.
PT33 and PT28: Patient Prescription Versus Business Record
The two form numbers are often mentioned together, but they serve different people and different legal functions.
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Form |
Used by |
Purpose |
|---|---|---|
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PT33 |
Patient and authorised practitioner |
The patient’s prescription. It records the medical decision, treatment directions, authorised quantity and treatment period. |
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PT28 |
Licensed cannabis business |
The business-side record used to document and report controlled cannabis transactions, including the prescription connected with the sale. |
Patients do not apply separately for PT28. The dispensary handles its own records and reporting. A compliant sale connects the patient’s active PT33 with the amount supplied, which is why prescription verification matters. ThaiCannaMed’s separate guide explains how PT28 and PT33 cannabis compliance works.
Who Can Apply and What Do Patients Need?
ThaiCannaMed currently accepts consultation requests from adults aged 20 or over. Thai residents, expats and tourists can request an assessment, but no applicant is guaranteed a prescription. The practitioner reviews each patient individually.
- Thai patients should provide a valid Thai identification card.
- Tourists and expats can use a valid passport. ThaiCannaMed does not require proof of Thai residency for its consultation process.
- Patients should explain their symptoms honestly and disclose relevant medical history, current medication and previous cannabis use where relevant.
- ThaiCannaMed’s patient information currently lists chronic pain, insomnia, migraine, loss of appetite and Parkinson’s disease as examples that may be discussed. They are not automatic qualifying conditions.
- Pregnancy or breastfeeding requires careful professional assessment. Cannabis should not be supplied except where legally permitted under appropriate medical supervision.
- A foreign prescription, medical cannabis card or doctor’s letter does not replace the PT33 required within the Thai system.
How to Get a PT33 Through ThaiCannaMed
Every route leads to the same medical decision. The difference is where the patient starts and how much assistance is available. Find out how to get a PT33 cannabis prescription in Thailand below.
1. Start the Consultation Online
Complete the medical intake form and speak privately with a licensed Thai Traditional Medicine practitioner by video or secure consultation. If approved, ThaiCannaMed provides digital access to the prescription details. Most consultations take 5 to 15 minutes, and the overall process is normally completed within about 20 minutes.
As of August 2026, ThaiCannaMed lists THB 600 for a first online consultation and THB 600 for an online renewal, with consultations generally available daily from 10:00 AM until 2:00 AM Thailand time. These service details should be checked immediately before publication.
2. Visit a Green Network Dispensary
At a participating store, scan the ThaiCannaMed QR code, complete the intake form and join a private consultation from the dispensary. If the practitioner approves treatment, the store verifies the PT33 and completes only the authorised purchase. The consultation and purchase usually take around 15 to 20 minutes in total. Some stores include the consultation with a qualifying bundle, although terms vary.
Use the live Green Network dispensary directory rather than an old list or an external link hub. The directory currently shows more than 20 participating dispensaries and is the best place to check active locations.
3. Visit Wonderland Clinic in Bangkok
Patients who prefer a face to face appointment can visit Wonderland Clinic at 93 Unit B, Sukhumvit Road, Watthana District, Bangkok 10110. The clinic operates the licensed clinical side of ThaiCannaMed and applies the same assessment standard as the online and Green Network routes.
What Information Appears on the PT33 Form?
The official PT33 form is designed to connect one patient, one practitioner and one course of treatment. It includes the information needed to check who issued the prescription and what was authorised.
- The practitioner’s name, professional category and licence or registration details.
- The patient’s name, age and identification or passport number.
- The diagnosis, symptoms or medical reason recorded by the practitioner.
- The cannabis flower quantity, treatment directions and intended period of use.
- The date of issue, professional signatures and relevant notes.
ThaiCannaMed patients can view their prescription details through the patient system. Patients should keep that access available, retain the dispensary receipt and keep the cannabis in its original packaging. The medical provider and dispensary must retain the records required for inspection under their own legal responsibilities.
Getting a PT33 cannabis prescription in Thailand has never been easier.
How Long Does PT33 Last and How Much Can It Cover?
A PT33 can cover a treatment period of no more than 30 days. The Ministry of Public Health confirmed this limit again in its May 2026 guidance for medical cannabis providers, which also states that providers must retain supporting evidence for inspection.
Current DTAM public guidance says cannabis flower for medical treatment should not exceed 30 grams per month. That figure is a ceiling, not a standard amount awarded to every patient. The practitioner may prescribe less according to the patient’s symptoms, history, other medication and medical need.
When the authorised period ends, the patient cannot simply reuse the expired prescription. Continued treatment requires a renewal assessment and a new PT33. Any amount available under an earlier prescription should not be treated as an allowance that automatically carries into a later period.
Where Can Patients Use PT33?
A ThaiCannaMed prescription can be used through Green Network stores and other compatible registered dispensaries that can verify the prescription, check the remaining authorised quantity and complete their required records. Individual store procedures can differ, so patients should confirm that a dispensary supports prescription verification before travelling.
A store displaying cannabis openly is not automatically compliant. A responsible dispensary should ask for an active PT33, verify the patient and supply no more than the authorised amount. If a seller is willing to ignore the prescription, walk away.
How to Recognise a Genuine PT33
A real PT33 cannabis prescription in Thailand begins with a medical assessment. It should identify the patient and practitioner, contain the required treatment information and be traceable to the issuing medical provider. A blank form, a presigned document or a number sold without consultation is not a shortcut. It is a warning sign.
The Ministry of Public Health has warned about forged forms and prescriptions issued without proper diagnosis. Authorities have said that fake PT33 documents may lead to criminal complaints, licence action and professional discipline. The message is blunt because it needs to be: paperwork without a real practitioner is not medical access.
- Do not buy a PT33 cannabis prescription in Thailand from a social media seller or anyone offering guaranteed approval without assessment.
- Check that the practitioner’s name and professional details appear on the prescription.
- Make sure the patient information, authorised quantity and treatment period match the consultation.
- Use a clinic or service that can answer who issued the prescription and how the record can be verified.
Official warning: Ministry of Public Health action against fake PT33 prescriptions.
PT33 for Tourists and Expats
Tourists and expats follow the same medical route as Thai patients. A valid passport can be used for the ThaiCannaMed consultation, and support is available in English and Thai. International visitors can also arrange an online assessment before travelling, then use an approved prescription after arriving in Thailand.
A prescription or cannabis card issued abroad is not a substitute. Thailand’s official guidance for tourists states that cannabis flower requires a valid prescription issued in Thailand and must be limited to what is medically necessary for a period of no more than 30 days.
- Keep the PT33 details and purchase receipt accessible.
- Carry only the quantity supplied under the active prescription.
- Use cannabis privately and never create smoke, odour or disturbance for other people.
- Do not take cannabis onto an international flight or across any national border.
Frequently Asked Questions
Is PT33 a medical certificate?
PT33 is officially a prescription form for controlled cannabis flower. People may search for a Thai cannabis medical certificate, but the prescription is more specific: it records the practitioner’s medical decision, treatment directions, quantity and treatment period.
How quickly can I get a PT33 cannabis prescription in Thailand?
ThaiCannaMed says most online consultations take 5 to 15 minutes and the overall process is normally completed within about 20 minutes. At a Green Network dispensary, the consultation and authorised purchase usually take around 15 to 20 minutes. Approval is never guaranteed.
Can PT33 be issued digitally?
ThaiCannaMed gives patients digital access to their prescription information through its secure system. The clinic and dispensing provider retain the records required for inspection. Patients should keep their digital access, receipt and original packaging available.
Can I use the same PT33 at different dispensaries?
It may be used through Green Network locations and other compatible registered dispensaries, subject to verification, the remaining authorised quantity and the store’s procedures. Confirm compatibility before visiting a store outside the network.
What happens when PT33 expires?
An expired prescription cannot be reused. Continued treatment requires a renewal assessment and a new PT33 cannabis prescription in Thailand. ThaiCannaMed currently lists online renewals at THB 400.
Do I need PT33 for every purchase?
Every purchase of controlled cannabis flower must be supported by a valid prescription and stay within the authorised treatment period and remaining quantity. The dispensary must verify and record the transaction.
Keep reading to see our final thoughts about getting a PT33 cannabis prescription in Thailand.
Start a PT33 Consultation
The clearest next step is to start your ThaiCannaMed patient consultation. Complete the medical intake form, speak privately with a licensed Thai Traditional Medicine practitioner and, if treatment is approved, receive access to the prescription details needed for a properly documented dispensary purchase.
Patients who prefer support at the point of purchase can instead use the Green Network directory to find a participating dispensary offering the consultation workflow in store.
A genuine PT33 cannabis prescription in Thailand connects the patient, the authorised practitioner and the registered dispensary through one traceable medical process. It defines the treatment period and quantity, gives the dispensary the information needed to verify the sale and helps the patient avoid the grey market. ThaiCannaMed provides access through online consultations, Wonderland Clinic and participating Green Network dispensaries across Thailand.