Deucravacitinib works by inhibiting TYK2, which is involved in the signaling of several important cytokines (proteins that regulate immune and inflammatory responses). These cytokines are associated with the activation of the immune system, and their uncontrolled activity leads to the development of inflammatory diseases like psoriasis.
By blocking the TYK2 enzyme, Deucravacitinib prevents the downstream signaling of pro-inflammatory cytokines such as IL-12, IL-23, and IL-6, which are involved in immune system activation. This results in a reduced immune response and helps to control the skin inflammation that causes the characteristic plaques in psoriasis.
Unlike other traditional treatments for psoriasis, Deucravacitinib specifically targets the root cause of the disease, leading to improved symptoms with potentially fewer side effects compared to older therapies.
Deucravacitinib is a prescription-only medication, and it should be used under the supervision of a healthcare provider. It is important to have regular check-ups to monitor for potential side effects, especially related to the immune system and liver function.