Hi, Biotin is a water-soluble vitamin that is commonly used for hair, skin, and nail health. While biotin is generally considered safe, there are some potential interactions with medications. Soriatane is a medication used to treat psoriasis, and it is known to cause hair loss and nail changes as side effects. Biotin has been used to counteract these side effects, as it is thought to promote hair and nail growth. However, there is limited research on the safety and effectiveness of biotin when taken with Soriatane. Some studies suggest that high doses of biotin may interfere with certain laboratory tests, leading to false results. This is particularly true for tests that measure thyroid function, so it is important to inform your healthcare provider if you are taking biotin. In summary, it is important to speak with your healthcare provider before taking any new supplements or medications, including biotin. They can help determine if biotin is appropriate for you and can provide guidance on how to safely use it alongside Soriatane. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Priyanka, General & Family Physician