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Enhertu 100mg Injection contains Trastuzumab deruxtecan, an advanced targeted anticancer therapy used to treat HER2-positive and HER2-low cancers. It is most commonly prescribed for metastatic or unresectable breast cancer, gastric (stomach) cancer, and selected cases of non-small cell lung cancer (NSCLC) in adults. Enhertu is an antibody–drug conjugate (ADC), meaning it combines targeted therapy with chemotherapy in a single molecule, allowing direct delivery of cancer-killing medication to tumor cells while limiting damage to healthy tissues.
Enhertu is administered as an intravenous infusion, typically once every 3 weeks, under strict medical supervision. Due to its potency and risk of serious side effects—especially lung and heart complications—patients require close monitoring throughout treatment. This medicine is not recommended for individuals below 18 years of age.
Enhertu 100mg Injection is used for the treatment of:
Enhertu works through a dual-action targeted mechanism. The trastuzumab component binds specifically to HER2 receptors on cancer cells, allowing precise targeting. Once attached, the drug releases DXd, a potent cytotoxic agent, directly inside the cancer cell. This leads to DNA damage and cell death. This targeted delivery enhances cancer-killing effectiveness while reducing exposure to surrounding healthy tissues.
Side Effects of Enhertu 100mg Injection
Like all medications, Enhertu 100mg Injection may cause side effects. However, not everyone will experience them.
Serious Side Effects (Seek immediate medical attention):
Common Side Effects (Usually mild and temporary):
Enhertu 100mg Injection is administered via intravenous infusion once every 3 weeks by a trained healthcare professional. The exact dose and duration depend on cancer type, disease progression, and patient tolerance. Pre-medications may be given to reduce nausea and infusion reactions. Self-administration is strictly not permitted.
Breastfeeding is not recommended during treatment, as the medicine may pass into breast milk and harm the baby.
Alcohol does not have a known direct interaction but may worsen side effects such as nausea or headache. Consult your doctor before consuming alcohol.
Patients with a history of lung disease are at higher risk of serious lung complications. Any new or worsening breathing symptoms should be reported immediately.
Enhertu usually does not impair driving, but dizziness or fatigue may occur. Avoid driving if you feel unwell.
Enhertu can cause harm to the unborn baby. Women should use effective contraception during treatment and for at least 7 months after the last dose. Men should continue contraception for 4 months after treatment.
Treatment continues as long as the patient benefits and tolerates therapy without unacceptable side effects. Duration varies based on response and disease progression.
Enhertu delivers a higher-potency cytotoxic drug and has a “bystander effect,” allowing it to kill nearby cancer cells even those with lower HER2 expression making it effective in HER2-low cancers.
Yes, interstitial lung disease is a known risk. Early detection is critical, so patients must report cough, shortness of breath, or fever immediately.
Yes. Enhertu may impact fertility. Patients planning future pregnancies should discuss fertility preservation options before starting treatment.
Most patients can continue routine activities, but fatigue and other side effects may require adjustments. Always follow your doctor’s personalized guidance.
Enhertu 100mg Injection (Trastuzumab Deruxtecan) is available through Phoenix Pharmex for patients, caregivers, and healthcare providers across India. As a trusted supplier, distributor, and wholesaler, we offer genuine Enhertu Injection with prescription verification and cold-chain delivery. Enhertu 100mg price varies by pack size and availability — contact us for current pricing.
| Active ingredient | Trastuzumab deruxtecan |
| Pharmacologic class | HER2 Inhibitor (Antibody-Drug Conjugate) |
| Medication category | ANTI NEOPLASTICS |
| Dosage forms | Injection |
The information on the Phoenix Pharmex website is shared for educational purposes only and is not a substitute for professional medical advice or treatment. Always consult a doctor for any health-related questions. Please avoid self diagnosis or delaying medical care based on this content. Our mission is to support informed decisions not replace professional medical guidance.
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