Drug interactions
Dexamethasone + Nifedipine
Severity: Minor
Dexamethasone and Nifedipine: 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 may lower nifedipine levels, reducing antihypertensive effect. Corticosteroids can also raise blood pressure through fluid retention.
What this interaction means in plain words
Dexamethasone and Nifedipine 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 belongs to Endocrine; Nifedipine belongs to Cardiovascular.
Why it happens
Dexamethasone induces CYP3A4 metabolism of nifedipine, with possible minor transporter effects in the other direction.
What to do
Monitor blood pressure during prolonged dexamethasone therapy. Increase the nifedipine dose if needed.
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 Nifedipine
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 Nifedipine?
MediHelp rates the interaction as minor. Dexamethasone and Nifedipine 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 may lower nifedipine levels, reducing antihypertensive effect. Corticosteroids can also raise blood pressure through fluid retention.
How serious is the interaction between Dexamethasone and Nifedipine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure during prolonged dexamethasone therapy. Increase the nifedipine dose if needed.
What other medicines interact with Nifedipine?
MediHelp also lists interactions of Nifedipine with, for example, Amifostine, Amlodipine-benazepril, Apalutamide. The full list is on the Nifedipine page.
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