Using alcohol and marijuana at the same time is likely to result in greater impairment than when using either one alone. Using marijuana and tobacco at the same time may also lead to increased exposure to harmful chemicals, causing greater risks to the lungs, and the cardiovascular system.
Also, be aware that marijuana may change how prescription drugs work. Always talk with your doctor about any medications you are taking or thinking about taking and possible side effects when mixed with other things like marijuana.
Onaivi ES, Green MR, Martin BR. Pharmacological characterization of cannabinoids in the elevated plus maze. J Pharmacol Exp Ther 1990;253(3):1002-9. View abstract.
Appiah-Kusi E, Petros N, Wilson R, et al. Effects of short-term cannabidiol treatment on response to social stress in subjects at clinical high risk of developing psychosis. Psychopharmacology (Berl). 2020 Jan 8. View abstract.
Ohlsson, A., Lindgren, J. E., Andersson, S., Agurell, S., Gillespie, H., and Hollister, L. E. Single-dose kinetics of deuterium-labelled cannabidiol in man after smoking and intravenous administration. Biomed.Environ Mass Spectrom. 1986;13(2):77-83. View abstract.
Special Precautions and Warnings
Rosenkrantz H, Fleischman RW, Grant RJ. Toxicity of short-term administration of cannabinoids to rhesus monkeys. Toxicol Appl Pharmacol 1981;58(1):118-31. View abstract.
Cannabidiol Now Showing Up In Dietary Supplements. Natural Medicines Web site. https://naturalmedicines.therapeuticresearch.com/news/news-items/2015/march/cannabidiol-now-showing-up-in-dietary-supplements.aspx. (Accessed May 31, 2015).
Barnes, M. P. Sativex: clinical efficacy and tolerability in the treatment of symptoms of multiple sclerosis and neuropathic pain. Expert.Opin.Pharmacother. 2006;7(5):607-615. View abstract.
Gaston TE, Bebin EM, Cutter GR, Liu Y, Szaflarski JP; UAB CBD Program. Interactions between cannabidiol and commonly used antiepileptic drugs. Epilepsia. 2017 Sep;58(9):1586-92. View abstract.