What should I pay attention to when using tucatinib?

When using tucatinib (Tucatinib), patients and doctors need to pay attention to several things to ensure the safety and effectiveness of the treatment.

This drug should be contraindicated in patients who are allergic to tucatinib or any ingredient in similar drugs. The use of tucatinib in patients with severe liver damage may increase the burden on the liver, so the patient's liver function should be evaluated before use. HER2Drugs may affect heart function, so the patient's heart condition should be evaluated before use, especially those with a history of heart disease. Tucatinib may interact with other drugs, affecting drug efficacy or increasing adverse reactions. Patients should inform their doctors about all medications they are taking, including prescription drugs, over-the-counter drugs, and supplements.

Regularly check liver function indicators, such as transaminase, bilirubin, etc., to monitor possible liver toxicity. Monitor cardiac function, especially changes in electrocardiogram, to detect signs of cardiotoxicity in a timely manner. Pay close attention to possible adverse reactions that may occur in patients, such as diarrhea, redness and swelling of the palms or soles of the hands, pain, swelling, oral ulcers, nausea, vomiting, fatigue, etc., and take corresponding treatment measures according to the severity of the symptoms.

The recommended dose of tucatinib is 300 mg twice daily, with or without food. However, to reduce gastrointestinal discomfort, it is usually recommended to take it with food. Depending on the patient's specific condition and the severity of the adverse reaction, the doctor may adjust the dose or suspend the medication. The medication should be taken at an interval of 12 hours every day, and try to take it at the same time every day to ensure that the concentration of the medication in the body is stable.

The safety of tucatinib in pregnant and breastfeeding women has not been established and its use is not recommended. Women of childbearing potential should use effective contraception during and after treatment. For patients with mild or moderate hepatic impairment, no dose adjustment is required; however, for patients with severe hepatic impairment, a dose reduction is required.

Tucatinib should be stored at room temperature (approximately 20°C to 25°C) away from excessive heat, moisture, or direct sunlight. Store in an airtight container and make sure the cap is tightly closed after each use. During the treatment period, patients should avoid greasy, spicy and other irritating foods, and maintain a light and balanced diet to reduce gastrointestinal discomfort.

References:

https://www.tukysahcp.com/mbc/safety