Question

which of the following medications is useful for treating autoimmune diseases? a antihistamine b corticosteroid c protease inhibitor d immunosuppressant

Explanation:

Antihistamines are for allergic reactions, corticosteroids have multiple uses but immunosuppressants are specifically used to suppress the immune - system which is overactive in autoimmune diseases. Protease inhibitors are mainly for viral infections by inhibiting viral proteases. Immunosuppressants work by dampening the immune response, which is beneficial in autoimmune diseases where the immune system attacks the body's own tissues.

Answer:

D. Immunosuppressant