Andrea Drummer is the woman behind the first cannabis cafe in the US, but for now you may still want to BYO brownies.
Consumer affairs correspondent
Products containing the cannabis extract cannabidiol (CBD) have been on sale in the UK for years, so the Food Standards Agency (FSA) has not been quick out of the blocks to act. But the stance it has now taken is a strong one.
It had been hoping individual companies would come forward with product information.
But as none provided enough documentation, the regulator is now forcing them to - or threatening to take them off the shelves.
For companies hoping for a slice of the UK's multi-million pound CBD industry, that's a big incentive to comply.
The new advice to consumers, that CBD oil should not be taken alongside any other medication, will come as shock to many who have turned to these new oils, drops, foods and supplements to help them with medical problems.
Although CBD products are not allowed to make any health claims, many people say they help with everything from mental health problems to coping with cancer treatments - so they are likely to be taking them alongside other medicines.
Users of cannabidiol (CBD) say it has medicinal benefits, but those who sell it are not allowed to make any medical claims.
Pharmacists are calling for better regulation of products claiming to contain cannabis derivative CBD.
There has been a spike in demand within the last twelve months, according to manufacturers.
Non-medicinal CBD is now on sale in High Street shops across the country, including chemists.
But the National Pharmacy Association says the products need clearer information and better checks on content.