Tacalcitol Uses Tacalcitol is used in the treatment of psoriasis.
How Tacalcitol works Tacalcitol is a derivative of vitamin D₃ and belongs to a class of drugs known as antipsoriatics. It binds to the keratinocyte vitamin D receptor to the same extent as natural vitamin D₃. It functions by normalizing cell growth and development in the skin, preventing the excessive growth rate of skin cells that leads to the scaling characteristic of psoriasis.