Do not suddenly quit taking your medicine unless your doctor tells you to.Call 911 or other emergency services right away if you have:Trouble breathing.Swelling of your face, lips, tongue, or throat.Call your doctor right away if you have:Hives.Signs of illness or infection, such as chills, cough, or fever.Chest pain or tightness.A rash on your head, face, or belly.Belly pain or fullness.Lower bac