Mitomycin (Generic Name)
Other Names: Mitomycin C, Mutamycin®
About This Drug
Mitomycin is a drug used to treat cancer. This drug is given intravenously (IV).
Possible Side Effects (More Common)
- Nausea and vomiting. These symptoms may occur within several hours after you receive the drug and may last up to 24 hours. Drugs are available to prevent and lessen these side effects.
- A decrease in appetite.
- Bone marrow depression. This is a decrease in the number of white blood cells, red blood cells, and platelets. Bone marrow depression usually occurs five to seven days after the drug is given and may increase your risk of infection, fatigue, and bleeding.
- Hair loss is usually complete scalp hair loss and can include loss of eyebrows, eyelashes, and pubic hair. You may notice this a few days or weeks after treatment has begun.
Usually hair loss is temporary; your hair should grow back when treatment is completed.
- Discoloring of the fingernails can occur.
- You may be short of breath. Your arms, hands, legs and feet may swell. Some changes may occur in the tissue of the heart that can cause your heart to have less ability to pump blood. Your heart function will be checked as needed.
Possible Side Effects (Less Common)
- Soreness of the mouth and throat. You may have red areas, white patches, or sores that are painful.
- Skin and tissue irritation. You may have redness, pain, warmth, or swelling at the IV site. This irritation occurs if the drug leaks out of the vein and into surrounding tissue.
- This drug may affect how your kidneys work. Your kidney function will be checked as needed. Electrolyte changes could occur with changes in kidney function. Your blood will be checked for electrolyte changes as needed.
- Effects on the nerves called peripheral neuropathy. You may feel numbness or tingling in your hands and feet. It may be difficult for you to button your clothes, open jars, or walk normally. The effect on the nerves may get worse with additional doses of the drug. These effects get better in some people after the drug is stopped but it may not get better in some people.
- Be careful when cooking, walking, and handling sharp objects and hot liquids.
Sexual Problems and Reproductive Concerns
- In men and women both, this drug may temporarily or permanently affect your ability to have children. This cannot be determined before your therapy. In men, this drug may interfere with your ability to make sperm, but it should not change your ability to have sexual relations.
In women, menstrual bleeding may become irregular or stop while you are receiving this drug. Do not assume that you cannot become pregnant if you do not have a menstrual period. Women may experience signs of menopause like vaginal dryness or itching.
- Pregnancy warning: This drug may have harmful effects on the unborn child, so effective methods of birth control should be used during your cancer treatment.
- Speak with your doctor or nurse if you plan to have children. Ask for information on sperm or egg banking.
- Genetic counseling is available to you to discuss the effects of this drug therapy on future pregnancies. In addition, a genetic counselor can review the potential risks of problems in the fetus due to this medication if an exposure during pregnancy has occurred.
- Breast feeding warning Women are advised not to breast feed during treatment because this drug could enter the breast milk and seriously harm a breast feeding infant.
- Use effective methods of birth control during your cancer treatment.
- Vaginal lubricants can be used to lessen vaginal dryness, itching, and pain during sexual relations.
Treating Side Effects
- Drink 6-8 cups of fluids every day unless your doctor has told you to restrict your fluid intake due to another medical condition. A cup is 8 ounces of fluid. If you vomit or have diarrhea, you should drink more fluids so that you do not become dehydrated.
- Ask your doctor or nurse about medication that can help to prevent or lessen nausea, vomiting, or a sore mouth or throat.
- Mouth care is very important. Your mouth care should consist of regular, gentle cleaning of your teeth or dentures and rinsing your mouth with a mixture of 1/2 teaspoon of salt in 8 ounces of water or 1/2 teaspoon of sodium bicarbonate (baking soda) in 8 ounces of water. This should be done at least after every meal and at bedtime.
- If you have mouth sores, avoid mouthwash that contains alcohol. Avoid alcohol and smoking because they can irritate your mouth and throat.
- Speak with your nurse about obtaining a wig before you lose your hair. Also, call the American Cancer Society at 800-ACS-2345 to find out information about the “Look Good...Feel Better” program close to where you live. It is a free program where women undergoing chemotherapy learn about wigs, turbans and scarves as well as makeup techniques and skin and nail care.
Food and Drug Interactions
There are no known interactions of Mitomycin with food. This drug may interact with other medication. Tell your doctor and pharmacist about all the medication and dietary supplements (vitamins, minerals, herbs and others) that you are currently taking.
The safety and effectiveness of dietary supplements and alternative diets are often unknown. Using these might unexpectedly affect your cancer or interfere with your treatment. Until more is known, you should not use dietary supplements or alternative diets without your cancer doctor's advice.
When to Call the Doctor
Call your doctor or nurse immediately if you have any of the following symptoms:
- Fever of 100.5 F (38 C) or above
- Unusual bleeding or bruising
- Coughing or difficulty breathing
- Lightheadedness or dizziness when changing position (lying to sitting, or sitting to standing)
- Redness, pain, warmth, or swelling at needle site
- Swelling of ankles or hands
- Pain in your sides
- Uncontrolled nausea that prevents you from eating or drinking
- Vomiting more than twice in one day
- Having trouble urinating
Revised February 2012