Ontruzant
Ontruzant ingredients
| Active ingredient | Strength |
|---|---|
| Trastuzumab | 150 mg/1 |
What Ontruzant is used for
The FDA lists the approved uses on the official label (below). In the EU, trastuzumab is approved as Tuznue for:
Metastatic breast cancer (MBC) For the treatment of adult patients with HER2-positive MBC: as monotherapy for the treatment of those patients who have received at least two chemotherapy regimens for their metastatic disease. Prior chemotherapy must have included at least an anthracycline and a taxane unless patients are unsuitable for these treatments. Hormone receptor positive patients must also have failed hormonal therapy unless patients are unsuitable for these treatments. in combination with paclitaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease and for whom an anthracycline is not suitable in combination with docetaxel for the treatment of those patients who have not received chemotherapy for their metastatic disease in combination with an aromatase inhibitor for the treatment of postmenopausal patients with hormone-receptor p…
EU wording from the European Medicines Agency; US approved uses can differ.
Key facts
- Brand
- Ontruzant
- Generic name
- Trastuzumab
- Made by
- Organon LLC
- Forms
- Injection, Powder, Lyophilized, For Solution
- Given
- Intravenous
- Drug class
- HER2/neu Receptor Antagonist
- FDA approval
- Biologic licence (BLA) BLA761100
- On the US market since
- 2021
Official information
- Ontruzant prescribing information (FDA label) on DailyMed
- MedlinePlus drug information (search for Trastuzumab)
In India
- Trastuzumab: 29 brands in India
Specialist medicine: started and supervised by a specialist doctor or hospital. This page is a plain-language summary of public official information, not medical advice; follow your doctor and the official product information.
Common questions
What is Ontruzant?
Ontruzant (Trastuzumab) is a cancer medicine made by Organon LLC, approved by the US FDA.
What are the ingredients of Ontruzant?
Ontruzant contains Trastuzumab (150 mg/1).
Is Ontruzant approved in Europe?
The same active substance is approved in the EU as Tuznue, Herceptin, Phesgo.
From the FDA National Drug Code directory (open.fda.gov, public domain) and the European Medicines Agency medicines list. Page made 5 November 2026 by Satya Babu.
← All specialty medicines, USA