Erenumab (Aimovig)
Self-injection every 4 weeks
Erenumab, sold under the brand name Aimovig, was the first CGRP inhibitor to come on the market. It works by blocking the CGRP receptor, so the protein cannot take effect. Erenumab is given every 4 weeks as an injection under the skin with an auto-injector.
After instruction, patients can give themselves the injection at home. Common side effects are reactions at the injection site and constipation. In general, erenumab is well tolerated.