Drug Interaction Report

Pirtobrutinib may increase the blood levels and effects of galantamine. Talk to your doctor if you have any questions or concerns. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring to safely use both medications. Contact your doctor if your condition changes or you experience increased side effects. 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.

Consumption of grapefruit, grapefruit juice, and supplements that contain grapefruit should be avoided during treatment with pirtobrutinib as they may increase the blood levels of pirtobrutinib. This may increase the risk of side effects such as infection, bruising, bleeding, fatigue, muscle pain, diarrhea, swelling, and difficulty breathing. Talk to your doctor if you have any questions or concerns. 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.

Galantamine should be taken with food, and you should drink plenty of fluids throughout the day to reduce the severity of certain side effects such as nausea, vomiting, diarrhea, loss of appetite, and/or weight loss. Extended-release formulations should be swallowed whole (i.E., do not crush, chew, or divide the pill) and are often recommended to be taken in the morning. You should speak with your healthcare provider before using grapefruit products (fruit, juice, supplements) with galantamine as they may increase the blood levels and side effects of galantamine. You should also contact your healthcare provider if you experience changes in your heart rate, seizures, difficulty breathing, trouble urinating, dizziness, fainting, nausea, vomiting, diarrhea, and/or unexpected weight loss. 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.