Pharmacokinetic Drug-drug interactions (Absorption) Flashcards
Antacid +
Ketoconazole
Bisacodyl
Antibiotics +
Warfarin
Digoxin
OCPs
Tetracycline/Fluoroquinolones +
Metal-containing products
Cholestyramine/Colestipol +
Fat-soluble drugs
Deferoxamine +
Fe
Use of antibiotics
Alteration of GI flora
Tetracycline/Fluoroquinolones + Metal-containing products
Cholestyramine/Colestipol + Fat-soluble drugs
Deferoxamine + Fe
Complexation/Adsorption
Ketoconazole + Antacid
Weak base + Basic environment = decrease absorption
Bisacodyl + Antacid
Enteric coated + Basic environment = Unionized = increase chance of systemic absorption = decrease effect in colonic nerves
Antibiotics + Warfarin
Increase warfarin effect
Antibiotics + Digoxin
Increase digoxin toxicity
Antibiotics + OCPs
Increase chances of unwanted pregnancy
Tetracycline/Fluoroquinolones + Metal-containing products
Decrease antibiotic effect
Cholestyramine/Colestipol + Fat-soluble drugs
Decrease absorption of fat-soluble drugs
Fat-soluble drugs
Vitamin ADEK
Digoxin
Warfarin
Thyroid hormones