But the terminology can become confusing quickly.
Prescription cannabis oil, CBD oil bought from a shop and hemp-derived wellness products aren't necessarily the same thing.
Prescription cannabis-based medicines are supplied within a medical framework and may contain THC, CBD or combinations of cannabinoids according to the individual product and prescription.
Here's what UK patients and prospective patients should understand.
What Is Prescription Cannabis Oil?
Prescription cannabis oils are liquid cannabis-based medicinal products formulated for medical use.
Their cannabinoid composition varies.
You may encounter products containing:
- predominantly CBD;
- predominantly THC;
- combinations of THC and CBD;
- different cannabinoid concentrations;
- different carrier oils;
- different bottle volumes.
The prescribed formulation and dose are matters for the treating clinician.
Is Cannabis Oil Legal in the UK?
Certain cannabis-based products for medicinal use can legally be prescribed under the UK's medical cannabis framework.
Specialist doctors have been able to prescribe qualifying cannabis-based medicinal products since the November 2018 regulatory changes.
However, the phrase “cannabis oil” doesn't itself make a product legal.
The legal position depends on what the product contains, its status and how it is supplied.
Prescription Cannabis Oil vs CBD Oil
This is an important distinction.
The NHS notes that some products sold as CBD or hemp oil are legally available as food supplements, but there is no guarantee that these provide health benefits or are equivalent to prescription medical cannabis.
Prescription cannabis medicine should therefore not be conflated with:
- supermarket CBD;
- online wellness oils;
- hemp supplements;
- illicit THC oil.
For SEO purposes, this page should answer searches around all of those distinctions without pretending the products are interchangeable.
THC Cannabis Oil
THC-containing prescription oils contain controlled cannabinoids and can produce psychoactive effects.
Potential adverse effects can include:
- dizziness;
- tiredness;
- changes in mood or behaviour;
- feeling high;
- hallucinations in some circumstances.
THC can also affect activities requiring concentration and coordination.
Patients should follow their prescription and clinical advice rather than adjusting cannabinoid concentration themselves.
CBD Cannabis Oil
CBD does not create the same intoxicating effects as THC.
However, “CBD” doesn't automatically mean harmless.
The NHS warns that CBD can affect how other medicines work and may affect liver function, meaning clinical monitoring can sometimes be necessary.
That's another reason prescription CBD-based medicines and retail CBD supplements shouldn't be treated as identical products.
Understanding Oil Strength
Prescription oils can display cannabinoid concentrations in ways that consumers initially find difficult to compare.
Your database should normalise:
- THC concentration
- CBD concentration
- bottle volume
- total cannabinoid content
- price
- price per ml
This creates much better price transparency.
How Much Does Medical Cannabis Oil Cost?
Prices vary by formulation, concentration, bottle size and supplier.
There isn't a single meaningful answer to:
“How much does cannabis oil cost?”
Instead, compare products using:
Bottle price
The amount paid for the complete bottle.
Price per ml
Useful for comparing different bottle sizes.
Cannabinoid concentration
Necessary because two equally sized bottles can have very different compositions.
Medication should then be considered alongside clinic costs.
Medical Cannabis Oil Comparison Database
Medical Cannabis Oil Comparison Database
Product data is being added. Check back soon.
Recommended filters:
| Filter | Purpose |
|---|---|
| THC | Compare concentration |
| CBD | Compare concentration |
| THC ratio | Compare formulations |
| Bottle size | Compare volume |
| Price | Compare total price |
| Price/ml | Normalise cost |
| Manufacturer | Brand research |
| Availability | Current status |
| Last checked | Freshness |
Individual pages could use:
/oils/[product-name]/
What Each Oil Page Should Include
Build structured templates containing:
- Product name
- Manufacturer
- THC concentration
- CBD concentration
- THC ratio
- Bottle volume
- Observed price
- Price per ml
- Availability
- Date last verified
- Official product information
- Historical price changes
Avoid sections such as:
“Best oil for anxiety”
unless you're summarising robust clinical evidence rather than making your own treatment recommendation.
Oils vs Flower
Neither formulation is universally “better”.
They differ in administration, formulation and prescribing considerations.
Your clinician determines what is appropriate based on your circumstances.
From a consumer-research perspective, however, we can objectively compare:
| Feature | Flower | Oil |
|---|---|---|
| Pricing unit | £/gram | £/ml |
| Cannabinoid data | THC/CBD % | THC/CBD concentration |
| Prescription required | Yes | Yes for controlled prescription CBPM |
| Product availability | Variable | Variable |
| Smoking permitted | No | Not applicable |
What About CBD Oils Bought Online?
Be careful.
The NHS warns that many products available online and described as medical cannabis may have uncertain quality/content and could be illegal or potentially dangerous.
A legal retail CBD supplement isn't automatically a prescription medicine either.
This creates a valuable supporting SEO page:
That should eventually become part of the product cluster.
Are Cannabis Oils Licensed Medicines?
Some cannabis-derived medicines have specific marketing authorisations, while many CBPMs prescribed privately are supplied as unlicensed medicines.
The UK has a regulatory framework governing the manufacture and supply of those unlicensed products.
Your product database should therefore include a field such as:
Regulatory/product status
where reliable information is available.
How Do You Get Prescription Cannabis Oil?
The normal private pathway involves:
- preliminary eligibility screening;
- medical-record review;
- specialist assessment;
- prescribing decision;
- pharmacy dispensing;
- follow-up monitoring.
A prescription is not guaranteed simply because a particular oil appears in our database.
FAQs
Can you legally get THC oil in the UK?
THC-containing cannabis-based medicines can be legally supplied where appropriately prescribed within the UK medical framework.
Is prescription cannabis oil the same as CBD oil?
No. Retail CBD products and prescription cannabis-based medicines shouldn't be treated as interchangeable.
How much does prescription cannabis oil cost?
It varies by product, concentration and volume. Our database compares both bottle price and price per ml.
Is stronger oil better?
No. Higher cannabinoid concentration doesn't automatically make a product clinically preferable.
Can I buy prescription oil through this website?
No. Our database provides research and comparison information rather than selling prescription cannabis medicines.
Compare Medical Cannabis Oils
Search our database by:
- THC
- CBD
- ratio
- bottle size
- manufacturer
- price/ml
- availability.
If you're researching treatment rather than an existing prescription, start with our Medical Cannabis Eligibility Checker UK and compare providers using the Clinic Comparison Tool.