Medicinal Cannabis NZ Guide

Talking to a doctor about medicinal cannabis

Most people who are curious about medicinal cannabis in New Zealand have the same worry: how do I bring this up with my GP without sounding like I am chasing a recreational high?

Talking to a doctor about medicinal cannabis
Medicinal Cannabis NZ Guide , CC BY 4.0 via Wikimedia Commons

Most people who are curious about medicinal cannabis in New Zealand have the same worry: how do I bring this up with my GP without sounding like I am chasing a recreational high? The answer is to treat it as a clinical discussion, not a request. You are asking a prescriber to consider a regulated pharmaceutical option, and the more structured you are, the more seriously your doctor can take you.

Talking to a doctor about medicinal cannabis: What the discussion actually is

Under the Misuse of Drugs Act, medicinal cannabis is a prescription medicine in New Zealand. It is not a general permission to use cannabis, and it is not a decision you make alone. The legal pathway requires a medical practitioner to prescribe an item that meets GMP standards and has been approved under the Medicinal Cannabis Scheme run by the Ministry of Health (Medsafe, 2020). That means the talk with your doctor is not about “getting cannabis”; it is about whether a regulated pharmaceutical option fits your clinical situation.

New Zealand’s Medicinal Cannabis Scheme (MCS) was established under the Misuse of Drugs (Medicinal Cannabis) Amendment Act 2018 and came fully into force in April 2020. Under the scheme, a medical practitioner can prescribe a medicinal cannabis preparation that meets GMP and Ministry of Health quality standards. The preparation is dispensed through a pharmacy, not a dispensary. Raw flower, while available, is prescribed and dispensed through a pharmacy. This legal pathway is often misunderstood: “legal medicinal cannabis” does not mean a patient can legally smoke raw plant material or buy unregulated items. The legal option is a manufactured pharmaceutical.

What a doctor can and cannot do

A doctor can prescribe a Medsafe-approved medicinal cannabis preparation if they believe it is clinically appropriate. They cannot give you a “cannabis licence” or a general permission to use cannabis. The Misuse of Drugs Act 1975 and the Misuse of Drugs (Medicinal Cannabis) Regulations 2019 define the legal framework. Under the Medicinal Cannabis Scheme, which has been in force since 1 April 2020, preparations must meet GMP standards and be approved by the Ministry of Health. Doctors can prescribe any option that meets the scheme’s quality standards, and most prescriptions are issued by specialists or GPs who are comfortable with the evidence base.

Why this clinical discussion is different from a normal GP visit

Most prescription medicines are approved for a specific condition and dose. Medicinal cannabis in New Zealand is not a single preparation with a single dose. Under the Misuse of Drugs Act and the Medicinal Cannabis Scheme (administered by the Ministry of Health), it is a regulated pathway that requires a prescription from a medical practitioner. The scheme sets product quality standards, but it does not approve cannabis for any particular condition. That decision is made by your doctor, using the NZ Formulary and the available clinical evidence.

This changes the nature of the appointment. You are not asking for a standard pill; you are asking a clinician to step outside the usual algorithm and make an individual judgement. That means the more prepared you are, the more useful the consultation will be. A doctor cannot prescribe what they do not know about, and they cannot recommend a dose, preparation, or treatment change without assessing you.

the material below gives you a practical method to prepare for that discussion. It does not diagnose, prescribe, or promise access.

The legal framework in practice

Before you book an appointment, understand what the doctor can and cannot do under New Zealand law.

Under the Misuse of Drugs Act 1975 and the Medicinal Cannabis Scheme (administered by the Ministry of Health and Medsafe), medicinal cannabis is a prescription medicine. A doctor can prescribe it if they consider it clinically appropriate. The preparation must meet GMP standards and be approved by the Ministry of Health. The scheme does not create a general right to use cannabis, and smoking raw plant material is not a legal pathway for most patients.

Your job in the consultation is to give the doctor enough information to make a prescribing decision. The doctor’s job is to assess whether medicinal cannabis is appropriate for your condition, rule out contraindications, and, if they prescribe, choose a preparation and dose.

What to prepare before the appointment

A 15-minute GP appointment is not enough time to educate a doctor. Your job is to bring a clear, organised summary of your situation so the doctor can make a clinical decision. Use this structure:

1. Your condition and its history

  • What is the diagnosis (if you have one)?
  • How long have you had it?
  • What have you already tried? List the medications, doses, and how long you took them.
  • What is your current medication list? Bring a written list or the boxes.

2. Your symptoms, quantified

  • Describe the main symptom (e.g., pain, nausea, muscle spasm) in measurable terms.
  • On a 0-10 scale, how severe is it at its worst? At its best?
  • How many days per week does it interfere with work, sleep, or daily tasks?
  • What makes it better or worse?

3. What you have tried already

  • Name the conventional treatments (drugs, physiotherapy, surgery, counselling) and their outcomes.
  • State whether they were stopped due to lack of effect or side effects.
  • If you have tried cannabis preparations before, be honest about what, how much, and the effect. This is clinical data, not a confession.

4. Your goal for treatment

  • Are you seeking pain relief, sleep improvement, anxiety reduction, or something else?
  • Is the goal to reduce other medications?
  • What does “better” look like in a measurable way (e.g., “I want to sleep 6 hours without waking”, “I want to walk 20 minutes without stopping”)?

5. Your current medication list

Include over-the-counter drugs, supplements, and any herbal preparations. This matters because cannabis can interact with certain medications, especially those metabolised by the liver (CYP450 enzymes).

6. Your baseline symptoms and how you will track them

  • Rate your symptom (e.g., pain, sleep quality, anxiety) on a 0-10 scale for 1 week before the consult.
  • Note when symptoms are worst (time of day, activity, stress).
  • Track how many “bad days” you have per week.
  • Bring a simple diary or notes; doctors make better decisions with data.

7. Your previous treatments and outcomes

  • List every medication, therapy, or procedure you have tried for the condition.
  • Note the dose, duration, and why you stopped (ineffective, side effects, cost).
  • This shows the doctor you have exhausted conventional options, which is a key part of the NZ eligility discussion.

8. Your goals and expectations

  • Define what “better” looks like: reduced pain score (e.g., from 7/10 to 4/10), better sleep, less anxiety, fewer seizures.
  • Be realistic: cannabis is not a cure; it is a symptom management tool.
  • State what you will do if it does not work (e.g., “I will try for 4 weeks and then reassess with you”).

9. Your questions for the doctor

  • Ask about the prescriber’s experience with the Medicinal Cannabis Scheme.
  • Ask about preparation choice: flower vs oil, THC:CBD ratio, and why one is chosen over another.
  • Ask about cost: initial consult, follow-ups, preparation cost, and whether there is a repeat prescription fee.
  • Ask about monitoring: when to review, what side effects to report, and how to adjust dose.
  • Ask about driving and work: what the legal limits are and whether the preparation affects your job.
  • Ask about drug interactions: list all current medications, including over-the-counter and herbal preparations.
  • Ask about pregnancy/breastfeeding: if relevant, ask explicitly, because the evidence base is thin.
  • Ask about storage and disposal: how to store oils/flower safely and how to dispose of unused preparation legally.

The one-sentence distinction

This is not a negotiation for a “cannabis licence”; it is a structured clinical discussion where you present a quantified treatment history and a measurable goal so a doctor can decide whether a regulated pharmaceutical option fits your condition under New Zealand’s Medicinal Cannabis Scheme.