Cigarette smoke contains compounds that significantly affect drug interactions in clinical settings, primarily through the induction of cytochrome P450 (CYP) enzymes. Given the complexity of cigarette ...

Grapefruit juice is more than a breakfast staple — it’s a potent enzyme inhibitor that can dramatically alter how certain drugs are metabolized. This article explores how a tiny structural difference ...

The cytochromes P450 (CYPs) are the main enzyme family for metabolism of therapeutic drugs. CYP3A4 is the most active drug metabolizing CYP, and it plays a prominent role in adverse drug-drug ...

CCBs are metabolized by the cytochrome P450 3A4 (CYP3A4) enzyme, and levels of these drugs can increase to harmful levels if CYP3A4 activity is inhibited. Clarithromycin, a macrolide antibiotic ...

Specifically, the CYP3A4 enzyme helps break down Ubrelvy after you take a dose. Certain medications block CYP3A4 from working. These medications are referred to as CYP3A4 inhibitors.

CYP450 Enzymes Cytochrome P450 (CYP450) enzymes are responsible for the metabolism of most chemicals and medications that enter the human body. Humans have roughly 60 CYP genes.

May 12, 2004 — Substantial increases in trazodone hydrochloride (Desyrel) plasma concentration may occur with concurrent dosing of the cytochrome P450 3A4 (CYP3A4) inhibitors ketoconazole ...