Drug interactions
Indinavir + Omeprazole
Severity: Moderate
Indinavir and Omeprazole: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Indinavir absorption depends on gastric acidity, and omeprazole can lower its plasma concentrations. This may compromise HIV suppression.
What this interaction means in plain words
Indinavir and Omeprazole can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Increased gastric pH reduces indinavir solubility and absorption.
What to do
Prefer an alternative to the PPI, or monitor viral load and consider a boosted indinavir regimen.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Omeprazole
- Mavacamten + Omeprazole Contraindicated
- Omeprazole + Rilpivirine Contraindicated
- Acalabrutinib + Omeprazole Major
- Atazanavir + Omeprazole Major
- Citalopram + Omeprazole Major
- Clopidogrel + Omeprazole Major
Frequently asked questions
Can I take Indinavir with Omeprazole?
MediHelp rates the interaction as moderate. Indinavir and Omeprazole can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Indinavir absorption depends on gastric acidity, and omeprazole can lower its plasma concentrations. This may compromise HIV suppression.
How serious is the interaction between Indinavir and Omeprazole?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Prefer an alternative to the PPI, or monitor viral load and consider a boosted indinavir regimen.
What other medicines interact with Omeprazole?
MediHelp also lists interactions of Omeprazole with, for example, Mavacamten, Rilpivirine, Acalabrutinib. The full list is on the Omeprazole page.
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