How to report a
product, service, or
adverse reaction
Every report you make helps improve safety and accountability for all medical cannabis patients in the UK. Here's who to contact and when.
How Reporting Works
Contact your provider
Most issues can be resolved directly. Always try this first.
Escalate if needed
Use ISCAS, GMC, or CQC if your concern isn't resolved.
Report side effects
Use the MHRA Yellow Card for adverse drug reactions.
Contact PatientsCann
We can support you if you're struggling to get heard.
Regulatory Bodies
Who to Report To
If you have a concern about your clinic or pharmacy that hasn't been resolved directly with the provider, ISCAS provides an independent adjudication service. Most private healthcare providers and some NHS Trust Private Patient Units use ISCAS. Check whether your provider is a member via their website.
When to use: After you have already attempted to resolve the issue directly with your provider and remain unsatisfied with their response.
Note: The Care Quality Commission (CQC) does not handle individual complaints, but does use complaint data to inform its regulation of health and adult social care services.
Visit ISCAS WebsiteIf your concern involves a doctor and remains unresolved after following your provider's complaints process, you can escalate to the GMC. The GMC regulates doctors in the UK and investigates serious cases of professional misconduct.
When to use: For serious concerns about a doctor's fitness to practise, professional conduct, or clinical competence, not for general dissatisfaction with a service.
Raise a Concern with the GMCThe CQC regulates and inspects both NHS and independent health and adult social care providers in England. While the CQC does not process individual complaints, it uses concerns raised to inform inspections and regulatory decisions, so your feedback still matters.
When to use: To share information about concerns regarding the quality or safety of a regulated service. Also useful if you believe a service isn't meeting safety standards.
Give Feedback to the CQCReporting Adverse Effects
MHRA Yellow Card Scheme
The Yellow Card scheme allows patients, carers, and healthcare professionals to report side effects (adverse drug reactions) from any medicine, including cannabis-based products for medicinal use (CBPMs). Every report contributes to improving medicine safety across the UK.
We strongly recommend downloading the MHRA Yellow Card app so you can report reactions quickly and easily from your phone. Your reports can lead directly to regulatory changes that make treatments safer for future patients.
Having trouble being heard?
If you're struggling to navigate the reporting process or feel your complaint isn't being taken seriously, the PatientsCann team can help you gather evidence and ensure your voice reaches the right people.
