Drug interactions
Belzutifan + Calcitriol
Severity: Minor
Belzutifan and Calcitriol: 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
Belzutifan induces CYP3A4 and may lower exposure to CYP3A4 substrates. Calcitriol effect could be reduced, although clinical significance is uncertain.
What this interaction means in plain words
Belzutifan and Calcitriol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Belzutifan belongs to Miscellaneous; Calcitriol belongs to Musculoskeletal.
Why it happens
Belzutifan induces CYP3A4, increasing calcitriol catabolism.
What to do
Monitor serum calcium and PTH, and increase the calcitriol dose if response is inadequate.
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 Calcitriol
- Amlodipine-hydrochlorothiazide-valsartan + Calcitriol Moderate
- Amlodipine-olmesartan-hydrochlorothiazide + Calcitriol Moderate
- Amobarbital + Calcitriol Moderate
- Apalutamide + Calcitriol Moderate
- Atazanavir + Calcitriol Moderate
- Atenolol-chlorthalidone + Calcitriol Moderate
Other interactions of Belzutifan
Frequently asked questions
Can I take Belzutifan with Calcitriol?
MediHelp rates the interaction as minor. Belzutifan and Calcitriol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Belzutifan induces CYP3A4 and may lower exposure to CYP3A4 substrates. Calcitriol effect could be reduced, although clinical significance is uncertain.
How serious is the interaction between Belzutifan and Calcitriol?
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 serum calcium and PTH, and increase the calcitriol dose if response is inadequate.
What other medicines interact with Calcitriol?
MediHelp also lists interactions of Calcitriol with, for example, Amlodipine-hydrochlorothiazide-valsartan, Amlodipine-olmesartan-hydrochlorothiazide, Amobarbital. The full list is on the Calcitriol page.
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