Medical marijuana is recommended by physicians to patients for various treatments. It is administered using a multitude of methods such as capsules, lozenges, tinctures, dermal patches, oral sprays, dermal sprays, cannabis edibles and vaporizing or smoking.
As of September 2018, there are an estimated 31 states in addition to the District of Columbia that have legalized marijuana (cannabis) for medical purposes, which began with California in 1996.
While a number of states have legalized it for medical purposes, however, it remains illegal for any use under federal law. The Rohradbacker-Farr amendment enacted in late 2014 limited the ability of federal law to be enforced in states in states that marijuana legalized.
It has been presented that medical marijuana is effective for treatment for many reasons, including, Chemotherapy-induced nausea & vomiting.