SIDE EFFECTS: See also Warning section. Nausea, vomiting, stomach/abdominal pain, or loss of appetite may occur. Nausea and vomiting can be severe. In some cases, your doctor may prescribe medication to prevent or relieve nausea and vomiting. Eating several small meals, not eating before treatment, or limiting activity may help lessen some of these effects. If these effects persist or worsen, tell your doctor or pharmacist promptly. Severe nausea and vomiting may rarely cause a loss of too much body water (dehydration). Contact your doctor promptly if you notice any symptoms of dehydration such as unusual decreased urination, unusual dry mouth/increased thirst, lack of tears, dizziness/lightheadedness, or pale/wrinkled skin. Temporary hair loss may occur. Normal hair growth should return after treatment has ended. People using this medication may have serious side effects. However, your doctor has prescribed this drug because he or she has judged that the benefit to you is greater than the risk of side effects. Careful monitoring by your doctor may decrease your risk. Tell your doctor right away if you have any serious side effects, including: unusual bleeding/bruising (e.g., small red spots on the skin, black/bloody stools, vomit that looks like coffee grounds), numbness/tingling feelings, unusual tiredness/weakness. Pain or sores in the mouth and throat may occur. Brush your teeth gently/carefully, avoid using mouthwash that contains alcohol, and rinse your mouth frequently with cool water mixed with baking soda or salt. It may also be best to eat soft, moist foods. If this medication accidentally leaks into the skin/muscle around the injection site, it may cause severe damage. Symptoms may occur both during treatment or weeks to months after receiving a dose. Tell your doctor right away if you notice redness, pain, or swelling at or near the injection site. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any of the following symptoms of a serious allergic reaction: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing (especially with cough). This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

PRECAUTIONS: Before using mitomycin, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of: blood/bleeding disorders (e.g., anemia, low blood cell counts), current infection, kidney disease, liver disease, radiation treatment. Do not have immunizations/vaccinations without the consent of your doctor, and avoid contact with people who have recently received oral polio vaccine or flu vaccine inhaled through the nose. Wash your hands well to prevent the spread of infections. To lower your risk of getting cut, bruised, or injured, use caution with sharp objects like razors and nail cutters, and avoid activities such as contact sports. Before having surgery, tell your doctor or dentist that you are using this medication. This medication is not recommended for use during pregnancy. It may harm an unborn baby. If you become pregnant or think you may be pregnant, tell your doctor right away. To avoid pregnancy, both males and females using this drug should use reliable form(s) of birth control (e.g., birth control pills, condoms) during treatment. Consult your doctor for details and to discuss effective forms of birth control. It is not known whether this drug passes into breast milk. Because of the possible risk to the infant, breast-feeding while using this drug is not recommended. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Some products that may interact with this drug include: other anti-cancer drugs (especially vinca alkaloids such as vinblastine).

OVERDOSE: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.