Drug interactions
Sulfadiazine + Tretinoin
Severity: Minor
Sulfadiazine 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
Sulfonamide antibiotics can cause photosensitivity, and topical tretinoin thins the stratum corneum and increases skin sensitivity to sunlight. Together they may heighten sunburn or phototoxic reactions, though the effect is mainly local and modest with topical use.
What this interaction means in plain words
Sulfadiazine 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 a retinoid and a sulfonamide.
What to do
Advise strict sun protection with broad-spectrum sunscreen and protective clothing while both are used. Reduce or pause tretinoin if significant skin irritation or sunburn occurs.
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 Sulfadiazine with Tretinoin?
MediHelp rates the interaction as minor. Sulfadiazine 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. Sulfonamide antibiotics can cause photosensitivity, and topical tretinoin thins the stratum corneum and increases skin sensitivity to sunlight. Together they may heighten sunburn or phototoxic reactions, though the effect is mainly local and modest with topical use.
How serious is the interaction between Sulfadiazine 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 strict sun protection with broad-spectrum sunscreen and protective clothing while both are used. Reduce or pause tretinoin if significant skin irritation or sunburn occurs.
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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