Medicine guide

TUKYSA

As listed in the register: TUKYSA

150 mg · tablet

  • Prescription only
  • Cancer treatments and immune-system medicines
Active substance
Tucatinib
Made by
Pfizer Canada Ulc

Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.

What it is for

Medicine groupCancer treatments and immune-system medicinesL01EH03

Mediclarum has not yet retrieved and stored the official label for this product, so none of its text is shown here. Open the official leaflet

How it works

From the US prescribing label for the same active substance (TUKYSA). It describes the substance, not this exact product.

Tucatinib is a tyrosine kinase inhibitor of HER2.

In vitro, tucatinib inhibits phosphorylation of HER2 and HER3, resulting in inhibition of downstream MAPK and AKT signaling and cell proliferation, and showed anti-tumor activity in HER2 expressing tumor cells.

Half-life11.9 h
Mostly cleared after≈ 2 daysfive half-lives — our arithmetic
How the body breaks it down

Tucatinib is metabolized primarily by CYP2C8 and to a lesser extent via CYP3A.

With food

Effects of Food Following administration of a single oral dose of TUKYSA in 11 subjects after a high-fat meal (approximately 58% fat, 26% carbohydrate, and 16% protein), the mean AUC 0-INF increased by 1.5-fold, the T max shifted from 1.5 hours to 4 hours, and C max was unaltered.

Quoted from the prescribing label, sections “Mechanism of Action” and “Pharmacokinetics”. DailyMed · 2024-11-04

Safety of the active substance

From the US prescribing label for the same active substance (TUKYSA). It describes the substance, not this exact product.

Most common side effects

The most common adverse reactions (≥20%) with TUKYSA in combination with trastuzumab and capecitabine in patients with metastatic breast cancer are diarrhea, palmar-plantar erythrodysesthesia, nausea, hepatotoxicity, vomiting, stomatitis, decreased appetite, anemia, and rash.

Quoted from the US prescribing label for the same active substance. Your own pack’s leaflet is the authority for your product. DailyMed

Same active substance, strength and form in other countries

Matched on active substance, strength and kind of form only. This is not a statement that the products are equivalent or interchangeable: other ingredients, release and approved uses can differ — ask a pharmacist before swapping.

Medicine passport: one printable page to show a pharmacist abroad

European UnionNo exact match for this strength and form

SwitzerlandNo exact match for this strength and form

Details

Made byPfizer Canada Ulc
Active substanceTucatinib
Used inCancer treatments and immune-system medicines
Strength150 mg
Formtablet
ClassificationL01EH03 · Cancer treatments and immune-system medicines
Routeoral
Dispensing (as stated by the register)PRESCRIPTION
StatusMarketed
MarketedYes, according to the register
DIN02499835
DPD drug code98956

Source: Drug Product Database · 2026-09-30 · not reviewed by a clinician

Contains information licensed under the Open Government Licence – Canada. Reuse terms: Open Government Licence – Canada.

Other strengths and forms

2 products are sold under this name. Grouped by form; a number on a strength means several companies make it.

  • tablet2 products

Same active substance

These contain the same substance. That does not mean one can replace another — ask a pharmacist.