ALS agents are used to treat amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease. They may help manage symptoms and slow disease progression. It's not clear how these medications work, but they're thought to work by protecting nerve cells from damage and reducing the release of harmful substances in the nervous system. ALS agents come in different forms, including oral solutions and injections. Examples include edaravone (Radicava, Radicava Ors), Relyvrio (sodium phenylbutyrate/taurursodiol), and riluzole (Teglutik). You can choose the form that best fits your needs.