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Firmagon 80mg Injection
Last updated on 30 Jun 2026 | 07:10 AM (IST)
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Firmagon 80 mg Injection is a prescription medicine used to treat advanced hormone-dependent prostate cancer. It contains degarelix, a GnRH receptor antagonist that rapidly lowers testosterone levels, helping slow cancer growth. Firmagon is given under specialist supervision as part of hormone therapy for prostate cancer.
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Introduction
Firmagon 80mg Injection is a prescription medicine used in the treatment of advanced prostate cancer. It works by reducing the levels of testosterone (a male hormone) in the body, which helps slow down or stop the growth of cancer cells.
How it works
Firmagon contains degarelix, a medicine that blocks signals in the body that tell the testes to produce testosterone. By lowering testosterone levels it helps control prostate cancer progression.
Benefits of Firmagon 80mg Injection
- Helps manage and control prostate cancer growth
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Works quickly to reduce testosterone levels in the body
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Can relieve prostate cancer–related symptoms like pain or difficulty in urination
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Given as an injection by a healthcare professional, ensuring proper use.
How to Use
- Administered as an injection under the skin (subcutaneous) by a doctor or nurse
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Dosage and frequency are determined by your oncologist.
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Do not self-inject or change the dose without medical advice.
Who Can Use It?
- Men diagnosed with advanced or metastatic prostate cancer.
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Not recommended for women, children, or adolescents.
Safety Advice
- Use only under strict medical supervision.
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Inform your doctor if you have heart disease, liver problems, or kidney disease.
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Possible side effects may include hot flashes, weight changes, injection site reactions, or tiredness.
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Always follow up with regular medical check-ups and blood tests as advised by your healthcare provider.
Storage Instructions
- Store in a refrigerator (2°C – 8°C). Do not freeze.
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Keep out of reach of children.
Expert tips
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Maintain a healthy lifestyle, including a balanced diet, regular exercise, and effective stress management, to support recovery.
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Stay hydrated and avoid smoking or alcohol, as they may interfere with treatment benefits.
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Do not miss follow-up appointments—regular monitoring ensures treatment is working effectively.
FAQs about Firmagon 80mg Injection
Q1.
Is Firmagon 80mg injection used as a monotherapy to treat cancer?
Firmagon 80mg injection is prescribed alone and also with other anti-androgen medications to treat hormonal cancer.
Q2.
Is it safe to use Firmagon 80mg injection during pregnancy?
Firmagon 80mg injection can harm an unborn baby and result in miscarriage. Hence it is not recommended during pregnancy.
Q3.
What is the correct way to take a Firmagon 80mg injection?
Firmagon 80mg injection is administered as a subcutaneous injection (under the skin), usually in the lower abdomen, once every 28 days.
Q4.
What are the common side effects of Firmagon 80mg injection?
Injection site reactions, weight gain, chills, hot flashes, hypertension, asthenia, tiredness, fever, constipation, back pain, urinary tract infection, changes in liver enzymes, dizziness, headache, and insomnia are the most common side effects of Firmagon 80mg injection.
Q5.
Who should not take Firmagon 80mg injection?
Firmagon 80mg injection is not recommended for men who have a history of severe allergic reactions to the medication.
References
- Ferring Pharmaceuticals A/S, Electronic medicines compendium (EMC), [ Revised on Dec 2019] [ Accessed on 23rd March 2023], https://www.medicines.org.uk/emc/files/pil.6537.pdf
- Ferring Pharmaceuticals Inc, US Food and Drug Administration, [ Revised on Feb 2015] [ Accessed on 23rd March 2023], https://www.accessdata.fda.gov/drugsatfda_docs/label/2015/022201s009lbl.pdf
- Goodman & Gilman’s, The Pharmacological Basis of Therapeutics, Natural products in cancer chemotherapy: Hormones and related agents, 12th edition, 2011, 1764.
- Claudine Isaacs, Anton Wellstein, and Anna T. Riegel, Hormones and Related Agents in the Therapy of Cancer, Goodman & Gilman’s Pharmacological Basis of Therapeutics, 13th Edition, 2018, 1237-1247.
Disclaimer
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Author Details

Written By
Dr. B. Deiva
Pharm D

Reviewed By
Dr. Tejashwin Adiga
MBBS
Last updated : 30 Jun 2026 | 07:10 AM (IST)

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