It is very important that your doctor check you at regular visits while you are receiving this medicine to make sure that the medicine is working properly. Blood tests may be needed to check for unwanted effects.
Using this medicine while you are pregnant can harm your unborn baby. Use an effective form of birth control while you are using this medicine to keep from getting pregnant. If you think you have become pregnant while using the medicine, tell your doctor right away.
This medicine may cause serious heart problems. Tell your doctor right away if you have chest pain or discomfort, shortness of breath, irregular heartbeats, or swelling of the feet, ankles, or legs while you are receiving this medicine.
This medicine may cause you to be more dizzy, lightheaded, or tired than normal. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are dizzy or not alert. Getting up slowly from a sitting or lying position may help prevent lightheadedness or dizziness. Tell your doctor if you feel dizzy or lightheaded.
This medicine may cause a serious type of allergic reaction called an infusion reaction. This can be life-threatening and requires immediate medical attention. Tell your doctor right away if you have a cough, difficulty with swallowing, dizziness, a fast heartbeat, chest tightness, trouble breathing, swelling in your face or hands, a fever, chills, itching or hives, or lightheadedness or faintness while you are receiving this medicine.
This medicine may cause a serious reaction called tumor lysis syndrome (TLS). Call your doctor right away if you have a change in how much or how often you urinate, rapid weight gain, muscle or joint pain, swelling of the feet or lower legs, or feel tired.
Carfilzomib can temporarily lower the number of white blood cells in your blood, increasing the chance of getting an infection. It can also lower the number of platelets, which are necessary for proper blood clotting. If this occurs, there are certain precautions you can take, especially when your blood count is low, to reduce the risk of infection or bleeding:
- If you can, avoid people with infections. Check with your doctor immediately if you think you are getting an infection or if you get a fever or chills, cough or hoarseness, lower back or side pain, or painful or difficult urination.
- Check with your doctor immediately if you notice any unusual bleeding or bruising; black, tarry stools; blood in the urine or stools; or pinpoint red spots on your skin.
- Be careful when using a regular toothbrush, dental floss, or toothpick. Your medical doctor, dentist, or nurse may recommend other ways to clean your teeth and gums. Check with your medical doctor before having any dental work done.
- Do not touch your eyes or the inside of your nose unless you have just washed your hands and have not touched anything else in the meantime.
- Be careful not to cut yourself when you are using sharp objects such as a safety razor or fingernail or toenail cutters.
- Avoid contact sports or other situations where bruising or injury could occur.
Check with your doctor right away if you have pain or tenderness in the upper stomach, pale stools, dark urine, loss of appetite, nausea, vomiting, or yellow eyes or skin. These could be symptoms of a serious liver problem.
Tell your doctor right away if you are having burning, numbness, tingling, or painful sensations in the arms, hands, legs, or feet. These could be symptoms of a condition called peripheral neuropathy.