Drug interactions
Ambrisentan + Dexamethasone
Severity: Minor
Ambrisentan and Dexamethasone: minor 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
Dexamethasone is a CYP3A4 inducer and could in theory lower ambrisentan levels. Ambrisentan is metabolized by several pathways, so any effect is likely small.
What this interaction means in plain words
Ambrisentan and Dexamethasone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Ambrisentan belongs to Miscellaneous; Dexamethasone belongs to Endocrine.
Why it happens
Possible modest induction of CYP3A4 and glucuronidation pathways involved in ambrisentan clearance.
What to do
No routine dose change is needed; monitor clinical response in pulmonary arterial hypertension if prolonged high-dose dexamethasone is used.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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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
Other interactions of Ambrisentan
- Ambrisentan + Apalutamide Moderate
- Ambrisentan + Bosentan Moderate
- Ambrisentan + Cyclosporin Moderate
- Ambrisentan + Amiodarone Minor
- Ambrisentan + Carbamazepine Minor
- Ambrisentan + Clarithromycin Minor
Frequently asked questions
Can I take Ambrisentan with Dexamethasone?
MediHelp rates the interaction as minor. Ambrisentan and Dexamethasone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Dexamethasone is a CYP3A4 inducer and could in theory lower ambrisentan levels. Ambrisentan is metabolized by several pathways, so any effect is likely small.
How serious is the interaction between Ambrisentan and Dexamethasone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine dose change is needed; monitor clinical response in pulmonary arterial hypertension if prolonged high-dose dexamethasone is used.
What other medicines interact with Dexamethasone?
MediHelp also lists interactions of Dexamethasone with, for example, Bcg vaccine live, Mifepristone, Rilpivirine. The full list is on the Dexamethasone page.
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