Drug interactions
Palovarotene + Vitamin a
Severity: Major
Palovarotene and Vitamin a: major 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
Palovarotene is a retinoid, and vitamin A above the recommended daily intake adds to retinoid load. This increases the risk of hypervitaminis A toxicity, including liver injury, bone changes and raised intracranial pressure.
What this interaction means in plain words
Palovarotene and Vitamin a can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Palovarotene belongs to Miscellaneous; Vitamin a belongs to Gastrointestinal Tract.
Why it happens
Additive retinoid pharmacodynamic effects producing hypervitaminosis A.
What to do
Avoid vitamin A supplements above the recommended daily allowance during palovarotene treatment. Review multivitamin content and monitor for signs of retinoid toxicity.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Vitamin a
- Acitretin + Vitamin a Major
- Etretinate + Vitamin a Major
- Isotretinoin + Vitamin a Major
- Bexarotene + Vitamin a Moderate
- Minocycline + Vitamin a Moderate
- Mipomersen + Vitamin a Moderate
Other interactions of Palovarotene
- Acitretin + Palovarotene Contraindicated
- Isotretinoin + Palovarotene Contraindicated
- Amiodarone + Palovarotene Major
- Amobarbital + Palovarotene Major
- Apalutamide + Palovarotene Major
- Aprepitant + Palovarotene Major
Frequently asked questions
Can I take Palovarotene with Vitamin a?
MediHelp rates the interaction as major. Palovarotene and Vitamin a can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Palovarotene is a retinoid, and vitamin A above the recommended daily intake adds to retinoid load. This increases the risk of hypervitaminis A toxicity, including liver injury, bone changes and raised intracranial pressure.
How serious is the interaction between Palovarotene and Vitamin a?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid vitamin A supplements above the recommended daily allowance during palovarotene treatment. Review multivitamin content and monitor for signs of retinoid toxicity.
What other medicines interact with Vitamin a?
MediHelp also lists interactions of Vitamin a with, for example, Acitretin, Etretinate, Isotretinoin. The full list is on the Vitamin a page.
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