Isotretinoin
Comprehensive clinical interaction and dietary monograph for Isotretinoin (Isotretinoin).
Kitchen Food, Drink & Dietary Conflicts
Biochemical interactions with common foods, beverages & cooking ingredientsPrescription & OTC Drug Interactions (DDI)
Documented pharmacological conflicts & contraindicated co-prescriptionsDietary Supplements, Herbs & Minerals (DNI)
Interactions with over-the-counter vitamins, minerals, and herbal preparationsSt. John's Wort (Hypericum perforatum)
Hyperforin potently activates the Pregnane X Receptor (PXR), inducing hepatic CYP enzymes and intestinal P-gp pumps. This accelerates medication clearance and precipitates therapeutic failure.
Chronotherapy & Meal Administration Protocols
Optimal absorption, meal-timing rules & GI tolerability protocolsIsotretinoin is usually taken twice a day with meals for 4 to 5 months at a time.
Rationale: Food enhances bioavailability, prevents gastric mucosal irritation, or stabilizes peak-to-trough pharmacokinetic variations.
Taking Isotretinoin alongside daily coffee, supplements, or other medications?
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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.