Explain the absorption of itraconazole capsules, Biology

Explain The absorption of itraconazole capsules

It is decreased with concurrent use of drugs that reduce gastric acidity, such as antacids, H2-receptor blockers, proton pump inhibitors or didanosine (Videx).

Itraconazole is a potent inhibitor of the hepatic isozyme CYP3A4 and may enhances serum concentrations of drugs that are metabolized by this enzyme. For this reason, itraconazole is contraindicated with the following drugs: cisapride  (Propulsid), dofetilide  (Tikosyn), ergot alka- loids, levomethadyl  (Orlaam),  lovastatin, oral midazolam (Versed, and others), pimozide  (Orap), quinidine, simvastatin, and triazolam (Halcion, and others). Itraconazole is itself also a substrate of CYP3A4; its metabolism may be affected by both inducers of the enzyme, such as rifampin and carbamazepine (Tegretol, and others), and by other inhibitors.

 

Posted Date: 6/26/2013 6:27:03 AM | Location : United States







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