Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
- blood in your urine or stools, pain or burning when you urinate;
- pale skin, feeling light-headed, rapid heart rate, trouble concentrating;
- sudden chest pain or discomfort, wheezing, dry cough or hack, feeling short of breath on exertion;
- fever, chills, body aches, flu symptoms, sores in your mouth and throat;
- easy bruising, unusual bleeding (nose, mouth, vagina, or rectum), purple or red pinpoint spots under your skin;
- extreme thirst with headache, vomiting, and weakness;
- jaundice (yellowing of the skin or eyes); or
- severe skin reaction -- fever, sore throat, swelling in your face or tongue, burning in your eyes, skin pain, followed by a red or purple skin rash that spreads (especially in the face or upper body) and causes blistering and peeling.
Common side effects may include:
- nausea, loss of appetite, stomach pain or upset, diarrhea;
- temporary hair loss;
- a wound that will not heal;
- missed menstrual periods;
- changes in skin color; or
- changes in nails.
This is not a complete list of side effects and others may occur.