When people first hear the term medical cannabis, it’s easy to assume every prescription is the same. In reality, medical cannabis comes in several different formulations, each with its own characteristics, benefits and purpose.
Just as one patient may be prescribed tablets while another receives an inhaler for the same condition, medical cannabis treatment is personalised. The most appropriate formulation depends on a range of factors, including your symptoms, lifestyle, treatment goals and how your body responds to medication.
At CB1 Medical, our clinicians work with patients to find the formulation that best suits their individual needs, rather than taking a one-size-fits-all approach.
Medical cannabis contains naturally occurring compounds called cannabinoids, alongside terpenes and other plant compounds. Different formulations deliver these compounds into the body in different ways, affecting how quickly they begin working, how long their effects last and how easy they are to fit into everyday life.
For example, someone living with persistent pain throughout the day may benefit from a longer-lasting formulation, while another patient experiencing sudden flare-ups may require a treatment that works more quickly. There isn’t a “best” formulation—only the one that’s most appropriate for your circumstances.

Medical cannabis flower is one of the most recognised formulations available on prescription in the UK. It is designed to be used with a dry herb vaporiser, which gently heats the flower without burning it.
Unlike smoking, vaporising avoids combustion while allowing cannabinoids and terpenes to be inhaled and absorbed through the lungs. Because of this, patients often notice the effects within a matter of minutes, making flower a popular option for those who require faster symptom relief.
Another advantage of flower is that it contains the plant’s naturally occurring cannabinoids, terpenes and flavonoids. These compounds work together to create each product’s unique profile, meaning two flowers with similar THC levels can still produce noticeably different effects.
Medical cannabis oils offer a different approach to treatment. Rather than being inhaled, they are usually taken under the tongue, allowing cannabinoids to be absorbed through the tissues of the mouth before entering the bloodstream.
Compared with flower, oils generally:
For many patients, oils become part of their daily treatment routine, particularly when longer-lasting symptom management is the priority.
Pastilles are another prescribed formulation that offers a discreet and convenient way to take medical cannabis.
As they are absorbed differently from inhaled treatments, they typically have a slower onset than flower but may provide symptom relief over a longer period. Many patients appreciate the convenience of pastilles, particularly when they’re away from home or looking for an alternative to vaporisation.
Many people assume that a higher THC percentage automatically means a “stronger” or more effective prescription. In reality, THC is only one part of the picture.
Clinicians also consider:
This is why two products with the same THC percentage may feel very different. Their overall chemical composition—and how your body responds to it—can influence your experience just as much as the THC content itself.
One of the benefits of medical cannabis treatment is that patients aren’t limited to a single formulation. At CB1 Medical, your clinician will discuss the different options available and help you understand how each one may fit your lifestyle, symptoms and treatment goals.
Many patients have a preference based on convenience, onset of effects or how they want to incorporate treatment into their daily routine. As long as it is clinically appropriate and within the limits of your treatment plan, you can choose from the available formulations and prescribed products.
Some patients prefer the faster onset of flower, while others choose oils or pastilles because they fit more easily into their day or provide longer-lasting effects. Some people may also use more than one formulation as part of their overall treatment plan.
Rather than there being a single “best” prescription, the aim is to find the combination of products that works best for you. Your treatment can also evolve over time as your needs, symptoms and preferences change.
Medical cannabis treatment is rarely about choosing one product and never changing it. As with many prescription medicines, your treatment may evolve over time.
Your clinician may adjust your prescribed limits, recommend a different formulation or help you explore other products within your treatment plan depending on how well your symptoms are controlled, whether you experience any unwanted effects and your personal preferences. Regular follow-up appointments help ensure your treatment continues to meet your needs as they change.
Medical cannabis isn’t a single medicine—it’s a range of carefully developed formulations that can be tailored to the individual. From faster-acting flower to longer-lasting oils and convenient pastilles, each option has its own place within a personalised treatment plan.
At CB1 Medical, our clinicians consider your medical history, current symptoms, lifestyle and treatment goals when agreeing the limits of your treatment plan. Within those limits, you can choose from appropriate prescribed products and formulations based on what works best for you.
Try our free eligibility checker to see if medical cannabis could be right for you.