Fosamprenavir ve Omeprazol ve sodyum bikarbonat etkileşimi

Decreased exposure of some antiretroviral drugs (e.g., rilpivirine, atazanavir and nelfinavir) when used concomitantly with omeprazole may reduce antiviral effect and promote the development of drug resistance [see Clinical Pharmacology ( 12.3 )] .

Increased exposure of other antiretroviral drugs (e.g., saquinavir) when used concomitantly with omeprazole may increase toxicity [see Clinical Pharmacology ( 12.3 )] .

CYP2C19 or CYP3A4 Inhibitors Clinical Impact: Increased exposure of omeprazole [see Clinical Pharmacology ( 12.3 )] .

Table 5: Clinically Relevant Interactions Affecting Drugs Co-Administered with Omeprazole and Interaction with Diagnostics Antiretrovirals Clinical Impact: The effect of PPIs on antiretroviral drugs is variable.

There are other antiretroviral drugs which do not result in clinically relevant interactions with omeprazole.

Antacid: MAALOX TC ↓Amprenavir Use with caution when administered at the same time.

Proton pump inhibitors: Esomeprazole a , lansoprazole, omeprazole, pantoprazole, rabeprazole Fosamprenavir calcium: ↔ Amprenavir ↑ Esomeprazole Proton pump inhibitors can be administered at the same time as a dose of fosamprenavir calcium with no change in plasma amprenavir concentrations.

Staggered coadministration of antacids and fosamprenavir calcium has not been evaluated.