Drug interactions
Promazine + Tretinoin
Severity: Minor
Promazine and Tretinoin: 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
Promazine, a phenothiazine, can cause photosensitivity, and tretinoin can also increase sensitivity to light. Together they may cause stronger phototoxic skin reactions on sun exposure.
What this interaction means in plain words
Promazine and Tretinoin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Additive photosensitizing effects of the two drugs.
What to do
Advise sun avoidance, protective clothing and sunscreen. Review any skin reactions.
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 Tretinoin
- Doxycycline + Tretinoin Major
- Minocycline + Tretinoin Major
- Omadacycline + Tretinoin Major
- Palovarotene + Tretinoin Major
- Sarecycline + Tretinoin Major
- Tetracycline + Tretinoin Major
Frequently asked questions
Can I take Promazine with Tretinoin?
MediHelp rates the interaction as minor. Promazine and Tretinoin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Promazine, a phenothiazine, can cause photosensitivity, and tretinoin can also increase sensitivity to light. Together they may cause stronger phototoxic skin reactions on sun exposure.
How serious is the interaction between Promazine and Tretinoin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise sun avoidance, protective clothing and sunscreen. Review any skin reactions.
What other medicines interact with Tretinoin?
MediHelp also lists interactions of Tretinoin with, for example, Doxycycline, Minocycline, Omadacycline. The full list is on the Tretinoin page.
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