Drug Interactions between ribociclib and upadacitinib

Consumption of grapefruit, grapefruit juice, and supplements that contain grapefruit should be avoided during treatment with upadacitinib as they may increase the blood levels of upadacitinib, which may increase the risk and/or severity of side effects such as low blood cell counts, anemia, serious infections, and elevated blood lipid levels. Contact your doctor if you develop symptoms such as paleness, fatigue, dizziness, fainting, fever, chills, diarrhea, sore throat, muscle aches, shortness of breath, blood in phlegm, weight loss, red or inflamed skin, body sores, or pain or burning during urination.

Smoking during treatment with upadacitinib may increase your risk of serious cardiovascular events and of developing malignancies. Tell your doctor if you are a current or past smoker. Talk to your doctor if you have any questions or concerns. Get emergency help right away if you develop any symptoms of a heart attack or stroke during treatment with upadacitinib, including severe tightness, pain, pressure, or heaviness in your chest, neck, or jaw; weakness in one side of your body; slurred speech; shortness of breath or feeling lightheaded. 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.

Patients should not consume pomegranates, pomegranate juice, grapefruit, or grapefruit juice during treatment with ribociclib unless directed otherwise by your doctor. Pomegranate juice or grapefruit juice can increase the blood levels of ribociclib. You may be more likely to experience side effects such as nausea; vomiting; diarrhea; loss of appetite; abdominal pain; mouth sores; hair loss; weakness; 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.