The objective of this study was to describe the effects of medical marijuana (cannabis) on the monthly frequency of migraine headache. Between January 2010 and September 2014, 121 adults with the primary diagnosis of migraine headache who were recommended marijuana treatment by a physician were included in this chart review. The patients had at least one follow up visit.
Migraine headache frequency decreased from 10.4 to 4.6 headaches per month with the use of medical marijuana. Most patients used more than one form of marijuana and used it daily for prevention of migraine headache.
Prevention of migraine was reported in 39%, decreased frequency of migraine in 19%, and aborted migraine headache was reported by 11%.
Inhaled forms of marijuana was used to treat acute migraine headache, and was also reported to abort migraine headache.
