Drug Interaction Report

If you are currently being treated or have recently been treated with palbociclib, you should let your doctor know before receiving varicella virus vaccine. Depending on the dose and length of time you have been on palbociclib, you may be at risk for developing an infection from the vaccine or have a reduced response to the vaccine. In some situations, your doctor may want to delay vaccination to give your body time to recover from the effects of palbociclib therapy. Conversely, if you have recently been vaccinated with varicella virus vaccine, your doctor may choose to postpone treatment with palbociclib for a few weeks. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Palbociclib oral capsules (Ibrance) should be taken with food to help with its absorption. Palbociclib oral tablets (Ibrance) may be taken with or without food. Do not consume grapefruit or grapefruit juice during treatment with palbociclib. Grapefruit and grapefruit juice can interact with palbociclib and increase the levels of palbociclib in your body. You may be more likely to experience side effects such as nausea; vomiting; diarrhea; loss of appetite; mouth sores; hair loss; weakness; pain, numbness, or tingling in the hands and feet; and impaired bone marrow function resulting in low numbers of different types of blood cells, which can increase the risk of anemia, bleeding problems, and infections. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.