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Interazioni tra farmaci

Atazanavir + Vonoprazan

Gravità: Maggiore

Atazanavir and Vonoprazan: major interaction.

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Sintesi

Vonoprazan produces profound, sustained acid suppression, which markedly reduces atazanavir solubility and absorption. This may lower atazanavir levels, risking virologic failure and resistance.

Cosa significa questa interazione in parole semplici

Atazanavir and Vonoprazan 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; Vonoprazan belongs to Gastrointestinal Tract.

Livello di evidenza: Moderate

Perché avviene

Increased gastric pH decreases dissolution and absorption of pH-dependent atazanavir.

Cosa fare

Avoid concomitant use and consider an antiretroviral not dependent on gastric acidity. If acid suppression is required, use an alternative regimen guided by HIV specialist advice.

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 Vonoprazan?

MediHelp rates the interaction as major. Atazanavir and Vonoprazan 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. Vonoprazan produces profound, sustained acid suppression, which markedly reduces atazanavir solubility and absorption. This may lower atazanavir levels, risking virologic failure and resistance.

How serious is the interaction between Atazanavir and Vonoprazan?

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 concomitant use and consider an antiretroviral not dependent on gastric acidity. If acid suppression is required, use an alternative regimen guided by HIV specialist advice.

What other medicines interact with Vonoprazan?

MediHelp also lists interactions of Vonoprazan with, for example, Amobarbital, Apalutamide, Carbamazepine. The full list is on the Vonoprazan page.

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