Dronabinol
Comprehensive clinical interaction and dietary monograph for Dronabinol (Dronabinol).
Kitchen Food, Drink & Dietary Conflicts
Biochemical interactions with common foods, beverages & cooking ingredientsTalk to your doctor or nutritionist and read the manufacturer's information for the patient to find out about ways to encourage yourself to eat when your appetite is poor and about which types of foods are the best choices for you. Do not eat grapefruit or drink grapefruit juice while taking dronabinol oral solution.
Grapefruit / Pomelo (Citrus paradisi / Citrus maxima)
Destroys enterocyte CYP3A4 enzymes, collapsing first-pass drug metabolism and causing up to 12-fold spikes in bioavailability for oral CYP3A4 substrates (statins, calcium channel blockers, immunosuppressants, PDE5 inhibitors).
Fresh Orange Juice & Apple Juice (OATP Influx Blockers)
Unlike CYP3A4 inhibitors that increase drug levels, fruit juice bioflavonoids block the enterocyte OATP influx pumps, plummeting absorption of oral fexofenadine (Allegra), ciprofloxacin, and atenolol by 30-70%.
Alcoholic Beverages (Beer, Wine, Spirits)
Multiplies respiratory depression and profound sedation with opioids and sedatives; blocks hepatic lactate uptake with metformin (lactic acidosis); triggers acute disulfiram-like vomiting and tachycardia with metronidazole; and accelerates dose-dumping in extended-release capsules.
Prescription & OTC Drug Interactions (DDI)
Documented pharmacological conflicts & contraindicated co-prescriptionsDietary Supplements, Herbs & Minerals (DNI)
Interactions with over-the-counter vitamins, minerals, and herbal preparationsChronotherapy & Meal Administration Protocols
Optimal absorption, meal-timing rules & GI tolerability protocolsThe first dose of the solution is usually taken on an empty stomach at least 30 minutes before eating, but the following doses can be taken with or without food.
Rationale: Food constituents interfere with gastrointestinal absorption or gastric emptying.
Swallow the dronabinol solution with a full glass of water (6 to 8 ounces).
Rationale: Promotes optimal mucosal absorption and consistent therapeutic plasma levels.
Frequently Researched Drug-Substance Combinations
Explore pairwise interaction dossiers and laboratory safety analysesDronabinol and Grapefruit
Pairwise Clinical Analysis & Safety RatingDronabinol and Grapefruit-juice
Pairwise Clinical Analysis & Safety RatingDronabinol and Grapefruit / Pomelo
Pairwise Clinical Analysis & Safety RatingDronabinol and Alcoholic Beverages
Pairwise Clinical Analysis & Safety RatingTaking Dronabinol alongside daily coffee, supplements, or other medications?
Add all your daily medications, foods (Dairy, Spinach, Coffee, Grapefruit), and botanicals (Ashwagandha, Curcumin, Melatonin) into the SafeStack interactive engine to run full multi-way synergy collision analysis in real time.
Data on this clinical monograph is compiled from the U.S. National Library of Medicine (MedlinePlus), openFDA Structured Product Labeling (SPL Section 7 Drug Interactions), the NIH Office of Dietary Supplements (ODS), and Krause and Mahan's Food & Nutrition Care Process.