Are there any taboos and dietary recommendations required while taking larotrectinib (Vitacai)?

Larotrectinib is an oral TRK (tropomyosin receptor kinase) inhibitor, mainly used to treat patients with solid tumors carrying NTRK gene fusions. As a targeted therapy drug, the absorption and metabolism of larotrectinib are mainly completed through the liver CYP3A enzyme system. Therefore, during medication, reasonable dietary management can help maintain the efficacy of the drug and reduce the risk of side effects.

While taking larotrectinib, patients should avoid concurrent intake of foods or drinks that may significantly affect CYP3A enzyme activity. Among them, grapefruit and its products are typical examples, which inhibit the CYP3A enzyme, leading to an increase in drug blood concentration and an increased risk of side effects. In addition, some health products or drinks containing high doses of herbal ingredients (such as St. John's wort) may also affect drug metabolism and should be avoided by patients.

The diet should be as light and easy to digest as possible, and the intake of greasy, spicy and high-sugar foods should be reduced. Larotrectinib may cause gastrointestinal discomfort, such as nausea, diarrhea, decreased appetite, or oral inflammation in some patients. Choosing light, high-protein, and vitamin-rich foods can alleviate these adverse reactions and help patients maintain physical strength and immune function. In addition, dividing meals or eating small amounts often can also help reduce gastrointestinal irritation.

It is also important to eat regularly and stay hydrated. It is recommended to take larotrectinib on an empty stomach or as directed by your doctor. Avoid taking it with large meals to affect absorption. At the same time, patients should drink enough water every day to promote metabolism and excretion and help maintain healthy kidney and liver function. During the medication period, if severe gastrointestinal reactions or weight loss occur, you should communicate with your doctor in time and adjust your diet or cooperate with symptomatic drug treatment if necessary.

Generally speaking, there is no need to strictly limit food during larotrectinib treatment, but attention should be paid to avoiding foods or drinks that affect pharmacokinetics, maintaining a light and easy-to-digest diet, regular meals and adequate fluids, which will help improve the drug efficacy and improve the patient's quality of life.

Reference link:https://www.drugs.com