Drug interactions
Cobicistat + Dapsone
Severity: Moderate
Cobicistat and Dapsone: 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
Cobicistat is a strong CYP3A4 inhibitor and may increase dapsone exposure. Higher dapsone levels could raise the risk of dose-related hemolysis and methemoglobinemia.
What this interaction means in plain words
Cobicistat and Dapsone 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.
Cobicistat belongs to Miscellaneous; Dapsone belongs to Anti Bacterial.
Why it happens
Cobicistat inhibits CYP3A4, which contributes to dapsone metabolism.
What to do
Monitor blood counts and methemoglobin symptoms, especially in G6PD-deficient patients. Reduce the dapsone dose if toxicity appears.
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 Dapsone
- Bcg vaccine live + Dapsone Major
- Dapsone + Primaquine Major
- Apalutamide + Dapsone Moderate
- Belzutifan + Dapsone Moderate
- Bosentan + Dapsone Moderate
- Bupivacaine implant + Dapsone Moderate
Other interactions of Cobicistat
- Alfuzosin + Cobicistat Contraindicated
- Apalutamide + Cobicistat Contraindicated
- Cobicistat + Colchicine Contraindicated
- Cobicistat + Dronedarone Contraindicated
- Cobicistat + Eletriptan Contraindicated
- Cobicistat + Eplerenone Contraindicated
Frequently asked questions
Can I take Cobicistat with Dapsone?
MediHelp rates the interaction as moderate. Cobicistat and Dapsone 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. Cobicistat is a strong CYP3A4 inhibitor and may increase dapsone exposure. Higher dapsone levels could raise the risk of dose-related hemolysis and methemoglobinemia.
How serious is the interaction between Cobicistat and Dapsone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood counts and methemoglobin symptoms, especially in G6PD-deficient patients. Reduce the dapsone dose if toxicity appears.
What other medicines interact with Dapsone?
MediHelp also lists interactions of Dapsone with, for example, Bcg vaccine live, Primaquine, Apalutamide. The full list is on the Dapsone page.
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