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Interazioni tra farmaci

Atazanavir + Lansoprazole

Gravità: Maggiore

Atazanavir and Lansoprazole: major interaction.

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Sintesi

Atazanavir absorption depends on gastric acidity, and lansoprazole markedly lowers atazanavir concentrations. This risks loss of virologic suppression and development of resistance.

Cosa significa questa interazione in parole semplici

Atazanavir and Lansoprazole can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Atazanavir belongs to Anti Virals; Lansoprazole belongs to Gastrointestinal Tract.

Livello di evidenza: High

Perché avviene

Higher gastric pH decreases atazanavir solubility and hence absorption.

Cosa fare

Avoid PPIs in treatment-experienced patients on atazanavir. In treatment-naive patients, follow labeling for a low PPI dose taken about 12 hours before ritonavir-boosted atazanavir, or use an alternative antiretroviral.

Cosa chiedere al farmacista

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Domande frequenti

Can I take Atazanavir with Lansoprazole?

MediHelp rates the interaction as major. Atazanavir and Lansoprazole can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Atazanavir absorption depends on gastric acidity, and lansoprazole markedly lowers atazanavir concentrations. This risks loss of virologic suppression and development of resistance.

How serious is the interaction between Atazanavir and Lansoprazole?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid PPIs in treatment-experienced patients on atazanavir. In treatment-naive patients, follow labeling for a low PPI dose taken about 12 hours before ritonavir-boosted atazanavir, or use an alternative antiretroviral.

What other medicines interact with Lansoprazole?

MediHelp also lists interactions of Lansoprazole with, for example, Mavacamten, Rilpivirine, Acalabrutinib. The full list is on the Lansoprazole page.

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