What is Trasturel 440 mg injection?
Trasturel 440 mg Injection contains trastuzumab, a targeted monoclonal antibody used in certain types of breast cancer and stomach cancer. It is not a regular chemotherapy. It works only when the tumour shows human epidermal growth factor receptor 2 overexpression or gene amplification on a validated test. Your doctor will usually ask for this test report before starting therapy.
Why doctors prescribe Trasturel 440 mg injection
Doctors prescribe trastuzumab based treatment in these settings:
- Early breast cancer where the tumour overexpresses human epidermal growth factor receptor 2, usually along with other cancer medicines and then continued as planned cycles.
- Metastatic breast cancer where the same receptor is overexpressed.
- Metastatic stomach or gastroesophageal junction adenocarcinoma with human epidermal growth factor receptor 2 overexpression.
Your oncologist decides the exact combination and schedule based on stage, prior treatments, heart health, and overall fitness.
How Trasturel works
Some tumours produce too much human epidermal growth factor receptor 2 on their surface. This receptor sends growth signals that push the cancer to multiply faster. Trastuzumab attaches to that receptor and blocks signalling. It also flags the cancer cell to the immune system, so immune cells can attack it more easily. This slows tumour growth and can shrink disease in many patients when used correctly.
How it is given
A doctor or nurse reconstitutes the vial and gives it by intravenous infusion. They do not give it as a fast injection push.
Common dosing patterns exist, but your doctor will choose what fits you:
- Weekly schedule: a higher first dose, then smaller weekly doses.
- Every 3 weeks schedule: a higher first dose, then maintenance doses every 3 weeks.
- The first infusion often runs slower. Staff watch you for fever, chills, breathing discomfort, rash, dizziness. Some people feels fine, some do not.
- Tests you should expect before and during therapy
- Good clinics do monitoring, not guesswork. Most doctors will check:
- Heart function before starting and at intervals during treatment, because trastuzumab can weaken the heart muscle in some patients.
- Basic blood tests, plus other tests depending on the medicines combined with trastuzumab.
- The tumour report confirming human epidermal growth factor receptor 2 overexpression or gene amplification using an accurate validated test.
If you already have heart disease, high blood pressure, diabetes, or you received certain chemotherapy drugs in the past, tell your doctor clearly. It matters a lot for safety planning.
Common side effects include:
- Fever, chills during or after infusion
- Nausea, vomiting
- Diarrhea
- Headache, tiredness
- Rash
- Cough or shortness of breath
- Low blood counts when used with other anticancer medicines
Drug interactions and practical precautions
- Always share your full list of medicines and supplements.
- Many side effects depend on what your doctor combines with trastuzumab.
- If you received anthracycline chemotherapy earlier, your doctor monitors heart more closely because heart risk increases.
Storage and handling
- Trasturel 440 mg should stay in cold chain.
- Keep it stored at 2 to 8 degree Celsius, protected from light, and do not freeze.
- Once opened and mixed, use it ASAP.
- Discard the leftover vial
Quick FAQ
Q. Is Trasturel chemotherapy or targeted therapy
It is targeted therapy. It works when the tumour overexpresses human epidermal growth factor receptor 2.
Q. Can I take it at home
No. A trained team gives it by infusion in a clinic or hospital setting.
Q. Why does my doctor keep checking my heart
Because trastuzumab can weaken heart pumping in some patients. Heart monitoring helps catch changes early.
Q. What if my tumour test is negative for the receptor
Then trastuzumab usually will not help, and the doctor chooses a different treatment plan.
References
- European Medicines Agency. Herceptin (trastuzumab) product information, indications and testing requirement.
- United States Food and Drug Administration. Herceptin (trastuzumab) label, boxed warnings and adverse effects.
- Drugs.com. Trastuzumab dosage guide and administration notes (infusion, not push).
- Indian pharmacy information pages for Trasturel storage and usage basics.
