Prednisone
Comprehensive clinical interaction and dietary monograph for Prednisone (Prednisone).
Kitchen Food, Drink & Dietary Conflicts
Biochemical interactions with common foods, beverages & cooking ingredientsYour doctor may instruct you to follow a low-salt, high potassium, or high calcium diet. Your doctor may also prescribe or recommend a calcium or potassium supplement. Follow these directions carefully. Talk to your doctor about eating grapefruit and drinking grapefruit juice while you are taking this medication.
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%.
Potassium-Enriched Salt Substitutes (NoSalt, Nu-Salt)
Exogenous potassium chloride loads cannot be cleared efficiently when RAAS or renal filtration is modified, risking acute lethal hyperkalemia (>6.5 mEq/L) and ventricular arrhythmias.
Prescription & OTC Drug Interactions (DDI)
Documented pharmacological conflicts & contraindicated co-prescriptionsSystemic NSAIDs (Ibuprofen, Naproxen, Meloxicam)
Mechanism: Dual cyclooxygenase inhibition and corticosteroid-mediated gastric mucosal thinning synergistically accelerate peptic ulceration.
Dietary Supplements, Herbs & Minerals (DNI)
Interactions with over-the-counter vitamins, minerals, and herbal preparationsPotassium Supplements (Potassium Chloride, Gluconate, Citrate)
Direct renin inhibition suppresses downstream aldosterone secretion, preventing physiological urinary potassium excretion. Exogenous potassium supplements directly provoke dangerous serum hyperkalemia.
Drug-Induced Nutrient Depletion & Nutritional Defense
Micronutrient depletions caused by pharmacological pathways & recommended replenishmentCalcium & Vitamin D
American College of Rheumatology Glucocorticoid-Induced Osteoporosis GuidelinesDepletion Pathway: Glucocorticoids inhibit intestinal brush-border calcium absorption, increase renal tubular calcium wasting, and accelerate osteoclast activity.
Potassium & Zinc
Modern Nutrition in Health and DiseaseDepletion Pathway: Mineralocorticoid receptor cross-activation by corticosteroids stimulates renal potassium and zinc excretion.
Chronotherapy & Meal Administration Protocols
Optimal absorption, meal-timing rules & GI tolerability protocolsPrednisone is usually taken with food one to four times a day or once every other day.
Rationale: Food enhances bioavailability, prevents gastric mucosal irritation, or stabilizes peak-to-trough pharmacokinetic variations.
Frequently Researched Drug-Substance Combinations
Explore pairwise interaction dossiers and laboratory safety analysesTaking Prednisone 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.