① Aspirin-Warfarin
○ Aspirin, commonly used as a pain reliever or blood thinner, can amplify the effects of other anticoagulants, such as warfarin.
○ When taken together, both drugs thin the blood more than intended, raising the risk of excessive bleeding or bruising.
② Ibuprofen-ACE inhibitors/Beta-blockers
○ Ibuprofen can reduce the effectiveness of antihypertensive drugs, such as ACE inhibitors and beta-blockers.
○ Ibuprofen causes the body to retain sodium and fluid, which raises blood pressure and counteracts these medications.
③ Grapefruit-Statins
○ Grapefruit, though not a “drug” in the traditional sense, contains compounds that inhibit the cytochrome P450 enzyme system.
○ Grapefruit compounds inhibit an enzyme that would normally break down these statins, causing higher-than-expected drug levels to accumulate in the bloodstream.
○ This buildup can lead to very severe side effects, including liver damage and muscle tissue breakdown.