Methotrexate injection, a treatment for certain autoimmune diseases and cancers, can lead to various side effects. These range from common, mild reactions such as headache and nausea to serious, ...

Biologic drugs are one type of medicine doctors use to treat moderate to severe rheumatoid arthritis (RA). They work on your immune system to ease inflammation and damage in your joints. Use this list ...

Epinephrine can quickly ease dangerous anaphylaxis symptoms, but you still need emergency care because symptoms can return hours or days later. Use an epinephrine auto-injector right away for trouble ...