Like Kesimpta, Ocrevus is approved to treat certain forms of multiple sclerosis (MS) and clinically isolated syndrome (CIS).Kesimpta is given as a subcutaneous injection (an injection under your skin). Ocrevus, on the other hand, is given by intravenous (IV) infusion. (This is an injection into a vein over a period of time.)If you’d like to know more about how these drugs compare, talk with your doctor. They can tell you about possible side effects of each drug. And they can recommend whether one option may be better for you than the other.