Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
severe constipation, severe bloating or stomach pain, bloody or tarry stools;
swelling, rapid weight gain;
urination problems;
wheezing, trouble breathing;
chest pain or pressure, pain spreading to your jaw or shoulder;
problems with vision, hearing, speech, balance, or daily activities;
a seizure;
mouth pain or ulcers;
numbness, tingling, burning pain; or
low blood cell counts--fever, chills, sore throat, body aches, easy bruising, unusual bleeding, pale skin, cold hands and feet, feeling light-headed or short of breath.
Common side effects may include:
hair loss;
decreased weight with loss of muscle tissue;
nausea, vomiting, diarrhea, weight loss; or
rash.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Vincristine side effects (more detail)
