Tretinoin/benzoyl peroxide
Tretinoin/benzoyl peroxide, sold under the brand name Twyneo, is a fixed-dose combination medication used for the treatment of acne. It contains tretinoin, a vitamin A derivative, and benzoyl peroxide, an oxidizing agent. The combination was approved for medical use in the United States in July 2021. References

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Anti-acne preparations
Combination drugs