Sarilumab, which is sold under the brand name “Kevzara”, is used to treat “moderately to severely active rheumatoid arthritis in people who have not responded to, or did not tolerate, more conventional treatments”.(Wikipedia.com). Before using Sarilumab, you need to take into consideration the serious side effects that it can cause. According to kevzara.com, Sarilumab is a medicine that affects the immune system in a way that lowers its ability to fight infections. In fact, the serious side effects that people have had after using it include “tuberculosis, and infections caused by bacteria, fungi, or viruses that can spread throughout the body”. According to the same source, some people have even died from these infections. Therefore, the safest thing to do is to get your healthcare provider to test you for tuberculosis before using Sarilumab. He/she should also monitor you for any signs or symptoms of tuberculosis during your treatment with the medicine in question. As for the common side effects, they include sore throat, a runny nose, and redness at the site of injection. It is still unknown, though, if this medicine affects an unborn baby, given the fact that it’s relatively new. So, you should tell your doctor if you become pregnant while using it. Bear in mind that Sarilumab is commonly administered as subcutaneous injections, once every two weeks.