1 A physical change, such as a state change or dissolving, does not create a new substance, but a chemical change does. 2  In a chemical reaction, the atoms and molecules that interact with each other are called reactants. 3  In a chemical reaction, the atoms and molecules produced by the reaction are called products. In a chemical reaction, the atoms and molecules produced by the reaction are called products. 2  In a chemical reaction, only the atoms present in the reactants can end up in the products. 3  No new atoms are created, and no atoms are destroyed.
Humira (adalimumab) is a biologic drug that works by blocking a protein known as TNF-alpha. Normally, TNF-alpha helps fight infection, but in excess amounts, it can cause painful inflammation and severe joint damage -- common symptoms of rheumatoid arthritis and other forms of inflammatory arthritis.
HUMIRA can cause serious side effects, including: 1  Serious infections. 2  These include TB and infections caused by viruses, fungi, or bacteria. 3  Symptoms related to TB include a cough, low-grade fever, weight loss, or loss of body fat and muscle.onsidering HUMIRA. HUMIRA Use 1. HUMIRA is a prescription medicine used alone, with methotrexate, or with certain other medicines to reduce the signs and symptoms of moderate to severe polyarticular juvenile idiopathic arthritis in children 2 years of age and older.