Drug interactions
Dexamethasone + Nevirapine
Severity: Moderate
Dexamethasone and Nevirapine: 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
Nevirapine may lower dexamethasone exposure and reduce its anti-inflammatory or antiemetic effect. Dexamethasone itself is also a CYP3A4 inducer and may reduce nevirapine levels.
What this interaction means in plain words
Dexamethasone and Nevirapine 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.
Dexamethasone belongs to Endocrine; Nevirapine belongs to Anti Virals.
Why it happens
Nevirapine induces CYP3A4, which metabolizes dexamethasone, and dexamethasone can induce nevirapine metabolism.
What to do
Monitor the therapeutic response to dexamethasone and increase the dose if needed. Monitor HIV viral load if prolonged dexamethasone is used.
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 Nevirapine
- Elbasvir / grazoprevir + Nevirapine Contraindicated
- Nevirapine + Ranolazine Contraindicated
- Nevirapine + St john's wort Contraindicated
- Abemaciclib + Nevirapine Major
- Acalabrutinib + Nevirapine Major
- Amobarbital + Nevirapine Major
Other interactions of Dexamethasone
- Bcg vaccine live + Dexamethasone Contraindicated
- Dexamethasone + Mifepristone Contraindicated
- Dexamethasone + Rilpivirine Contraindicated
- Dexamethasone + Smallpox vaccine live Contraindicated
- Dexamethasone + Varicella virus vaccine live Contraindicated
- Dexamethasone + Yellow fever vaccine Contraindicated
Frequently asked questions
Can I take Dexamethasone with Nevirapine?
MediHelp rates the interaction as moderate. Dexamethasone and Nevirapine 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. Nevirapine may lower dexamethasone exposure and reduce its anti-inflammatory or antiemetic effect. Dexamethasone itself is also a CYP3A4 inducer and may reduce nevirapine levels.
How serious is the interaction between Dexamethasone and Nevirapine?
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 the therapeutic response to dexamethasone and increase the dose if needed. Monitor HIV viral load if prolonged dexamethasone is used.
What other medicines interact with Nevirapine?
MediHelp also lists interactions of Nevirapine with, for example, Elbasvir / grazoprevir, Ranolazine, St john's wort. The full list is on the Nevirapine page.
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