After a UK medical cannabis consultation, patients often want to know what happens next. The prescription has been discussed, the clinician has made a decision, and now the process moves into pharmacy, payment, stock, checks and delivery or collection arrangements.
The useful answer is that dispensing is a controlled medicines process, not a normal retail purchase. A prescription usually needs to be checked, processed by a pharmacy, matched to available supply, paid for where private care applies, labelled, and handed over or delivered according to the provider’s process. That can involve admin steps you do not see.
This guide explains the pathway without promising timing, product availability, pharmacy choice or delivery outcome. It is not medical advice, it does not recommend a product, dose, route, clinic or pharmacy, and it does not replace your prescriber or pharmacist. For wider context, read medical cannabis prescription in the UK and medical cannabis costs in the UK.
The short answer
Once a prescription is issued, the patient-facing pathway often looks like this:
- the prescriber or clinic completes the prescription process;
- the pharmacy receives or is instructed about the prescription;
- the pharmacy checks the prescription and medicine details;
- stock, import, supply or substitution questions may need admin review;
- the patient may receive payment, confirmation or delivery instructions;
- the pharmacy dispenses the medicine with a label and any required information;
- the patient follows the clinic and pharmacy process for queries, repeats or problems.
The exact sequence can vary. Some clinics and pharmacies are closely linked. Some use a separate pharmacy process. Some communicate through portals, email, phone or invoices. If you are unsure where the prescription is, ask which organisation owns the next step.
Prescription and pharmacy are separate parts of care
The prescriber decides whether a cannabis-based medicinal product is clinically appropriate. The pharmacy handles the dispensing process. Those roles overlap in communication, but they are not the same job.
CQC guidance says the prescribing doctor is responsible for prescribing, overseeing care and follow-up, monitoring effectiveness and side effects, and keeping clear records. Pharmacy processes add medicine checks, supply, labelling and patient-facing dispensing support.
For patients, this means a delay or query after a consultation is not always a clinical refusal. It may be a prescription check, payment step, stock issue, supplier question, address confirmation or controlled-drug admin process.
Why some prescriptions involve “specials”
Many cannabis-based medicinal products in UK practice are unlicensed medicines supplied as “specials”. MHRA guidance explains that specials are specially manufactured or imported for the treatment of an individual patient after being ordered by an authorised prescriber.
That matters because unlicensed medicines can involve more governance than a standard licensed medicine. The prescriber carries responsibility for the decision. The pharmacy and supply chain still need to handle the medicine lawfully and safely.
For a patient, the practical takeaway is not to chase every technical detail. It is to know who to contact when:
- the prescription has not reached the pharmacy;
- the invoice or payment link has not arrived;
- the pharmacy says the medicine is not available;
- the product, label or quantity does not match what you expected;
- you have side effects, interactions or concerns after receiving it.
Stock and availability can change
Medical cannabis supply is not always as predictable as patients would like. A medicine discussed in a consultation may not be immediately available when the prescription reaches the pharmacy. A pharmacy may need to check stock, supplier availability, import status, dispensing requirements or whether a prescriber needs to approve a change.
The important boundary is that patients should not self-substitute. If the pharmacy raises a supply issue, ask how the clinic and prescriber handle it. The prescriber is responsible for clinical decisions about alternatives or changes.
Useful questions:
- Has the prescription reached the pharmacy?
- Is the delay a prescription check, payment step, stock issue or delivery issue?
- If the medicine is unavailable, who asks the prescriber to review options?
- How will I be told if the prescription needs to be amended?
- Who do I contact if the medicine arrives damaged or different from the prescription?
Payment, invoices and delivery
Private prescriptions often involve payment before dispensing or dispatch. The payment process can sit with the clinic, pharmacy or a linked provider. Costs may include consultation, repeat/admin fees, medicine, dispensing and delivery, depending on the service.
Do not assume the first advertised fee is the whole cost. Ask for the current process in writing:
- who sends the invoice;
- what the invoice covers;
- whether delivery is separate;
- what happens if stock changes before payment;
- whether missed delivery or address changes create extra steps;
- who handles refunds or corrections if the prescription cannot be supplied as expected.
Delivery arrangements also vary. Some medicines may be delivered by courier; some services may have collection or nominated-pharmacy arrangements. The article cannot promise which applies to you.
What should arrive with the medicine
When the medicine is dispensed, keep the original packaging and label. NHS medical cannabis guidance says the dispensing label contains important information about the medicine and the person it is prescribed for.
Check the basics without changing anything yourself:
- your name is correct;
- the medicine and quantity match the prescription information you were given;
- the directions and label are readable;
- storage information is clear;
- you know who to contact for side effects, missing items or damaged packaging.
If something looks wrong, contact the pharmacy or clinic before using the medicine. Do not guess or follow advice from a forum.
Repeat prescriptions and reviews
Repeat prescriptions are still part of care, not just admin. The clinic may need to check symptoms, side effects, medicines, risk factors, adherence, benefit, concerns and whether follow-up is due. A pharmacy may also need time to process the prescription once it is issued.
The safer approach is to ask the clinic:
- how much notice they need for repeat requests;
- what information they need before issuing another prescription;
- how side effects or supply problems should be reported;
- how prescription changes are handled;
- how follow-up reviews affect repeat prescribing;
- who to contact if a delivery or payment step is stuck.
This is planning, not stockpiling or treatment optimisation.
What this article is not saying
This article is not saying every clinic uses the same pharmacy pathway. It is not saying a prescription secures supply, timing, a particular product, a pharmacy choice or a delivery method. It is not saying patients should manage substitutions themselves.
It is saying that dispensing is a controlled, prescription-led process. Patients are best served by knowing who owns each step, keeping paperwork, checking labels, reporting problems early, and leaving clinical changes with the prescriber.
Sources
- NHS: Medical cannabis
- NICE: Cannabis-based medicinal products, NG144
- NHS England: Cannabis-based products for medicinal use
- GMC: Information for doctors on cannabis-based products for medicinal use
- CQC: Cannabis-based medicinal products: what we look at when we register and inspect
- MHRA: Supply unlicensed medicinal products, specials
- MHRA: Off-label or unlicensed use of medicines: prescribers’ responsibilities
- Home Office: Cannabis, CBD and other cannabinoids drug licensing factsheet
