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Interazioni tra farmaci

Dapsone + Primaquine

Gravità: Maggiore

Dapsone and Primaquine: major interaction.

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Sintesi

Both dapsone and primaquine are oxidant drugs that can cause hemolytic anemia in G6PD deficiency and methemoglobinemia in other patients. Together the oxidative stress is additive, and the risk of hemolysis is higher.

Cosa significa questa interazione in parole semplici

Dapsone and Primaquine 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.

Dapsone belongs to Anti Bacterial; Primaquine belongs to Anti Parasitic.

Livello di evidenza: Moderate

Perché avviene

Additive oxidative stress on red blood cells from the hydroxylamine metabolites of dapsone and primaquine.

Cosa fare

Test G6PD status before using either drug and avoid the combination in G6PD-deficient patients. If both are needed, monitor hemoglobin, methemoglobin and signs of hemolysis closely.

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 Dapsone with Primaquine?

MediHelp rates the interaction as major. Dapsone and Primaquine 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. Both dapsone and primaquine are oxidant drugs that can cause hemolytic anemia in G6PD deficiency and methemoglobinemia in other patients. Together the oxidative stress is additive, and the risk of hemolysis is higher.

How serious is the interaction between Dapsone and Primaquine?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Test G6PD status before using either drug and avoid the combination in G6PD-deficient patients. If both are needed, monitor hemoglobin, methemoglobin and signs of hemolysis closely.

What other medicines interact with Dapsone?

MediHelp also lists interactions of Dapsone with, for example, Bcg vaccine live, Apalutamide, Belzutifan. The full list is on the Dapsone page.

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