You can buy on : Support your local farmer cannabis poster
Marijuana is a whole bunch of chemicals and compounds in different mixtures. They may be helpful, bad or fine until they are mixed with other chemicals that have been introduced into the body which is why you need to check with a doctor before mixing medications. The job of pharmacists and researchers is to find out what each chemical does in different scenarios and how much is needed. Some have been shown as effective. Support your local farmer cannabis poster. Those cannibinoids are then extracted and put into a measurable dose there is no way of knowing. How much is in a plant without deconstructing the plant anyway. Marinol is one such drug.