The main usage of the retinoid drug, acitretin powder, is the treatment of severe psoriasis. It functions by reducing inflammation and inhibiting skin cell growth. A dermatologist will often prescribe the oral capsule type of acitretin. This drug is used to treat psoriasis. This substance is a retinoid that aids in the regular proliferation of skin cells and shares a structure with vitamin A. It prevents the psoriasis-related proliferation and thickness of skin cells. Acitretin powder is a medication used to treat severe psoriasis, which is characterised by abnormal skin cell development and red, thickened, or scaly skin.