Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Medicinal Cannabis - Potential Drug Interactions

Version 1 : Received: 3 December 2018 / Approved: 3 December 2018 / Online: 3 December 2018 (16:07:43 CET)

A peer-reviewed article of this Preprint also exists.

Alsherbiny, M.A.; Li, C.G. Medicinal Cannabis—Potential Drug Interactions. Medicines 2019, 6, 3. Alsherbiny, M.A.; Li, C.G. Medicinal Cannabis—Potential Drug Interactions. Medicines 2019, 6, 3.


Endocannbinoids system (ECS) engrossed a considerable interest as potential therapeutic targets in various carcinomas and cancer related conditions alongside with neurodegenerative diseases. Cannabinoids are implemented in several physiological processes such as appetite stimulation, energy balance, pain modulation and the control of chemotherapy induced nausea and vomiting (CINV). However, pharmacokinetics and pharmacodynamics interactions could be perceived in drug combinations, so in this short review we tried to shed the light over the potential drug interactions of medicinal cannabis. Hitherto, few data have been provided to the healthcare practitioners about the drug-drug interactions of cannabinoids with other prescription medications. In general, cannabinoids are usually well tolerated, but the bidirectional effects may be expected with concomitant administered agents via affected membrane transporters (glycoprotein p, breast cancer resistance proteins) and metabolizing enzymes (Cytochrome P450 and UDP- glucuronosyltransferases). The caveats should be undertaken to closely monitor the responses of cannabis users with certain drugs to guard their safety, especially for the elderly and people with chronic diseases or kidney and liver conditions.


cannabis; cannabinoids; THC; CBD, drug-drug interactions; pharmacokinetic; cytochrome P450; UDP- glucuronosyltransferases; glucoprotein-P


Medicine and Pharmacology, Pharmacology and Toxicology

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