Not yet. Stelara, an anti-allergic medication used to treat different types of psoriasis, is a human monoclonal antibody, a kind of protein that can help the body combat infection. Stelara will become available as the generic Ustekinumab. There are many alternatives for Stelara, which doctors prescribe to treat similar conditions, such as Otezla (Apremilast), Cosentyx (Secukinumab).