Interleukins are a group of small signaling molecules, and a type of cytokine. They play a vital role in the body’s immune response by activating and deactivating immune cells. Recently, interleukins have gained visibility as a target to help treat COVID-19, and the WHO has recommended giving IL-6 inhibitors to patients with severe cases. Additionally, because of its widespread impact on the body, the interleukin family has gained popularity as drug targets over the last few years.