


Fistent Injection
Written By Dr. Sakshi Jain, MS, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 25 Nov 2025 | 03:05 PM (IST)



₹11856
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Product introduction
Fistent Injection is given as an injection into the muscles under the supervision of a doctor. It should be taken as doctor your doctor's advice. The dose and how often you take it depends on what you are taking it for. Your doctor will decide how much you need to improve your symptoms. You should take this medicine for as long as it is prescribed for you.
The most common side effects of this medicine include injection site reaction, headache, vomiting, allergic reaction, and nausea. If these bother you, or appear serious, let your doctor know. There may be ways of reducing or preventing them.
Before taking this medicine, tell your doctor if you ever had kidney or liver disease or had bleeding disorder or had any blood clotting medicine. Your doctor should also know about all other medicines you are taking as many of these may make this medicine less effective or change the way it works. Tell your doctor if you are pregnant, planning pregnancy or breastfeeding.
Uses of Fistent Injection
Benefits of Fistent Injection
Breast cancer happens when cells in the breast grow abnormally and form tumors that can spread to other parts of the body. This often occurs due to hormone-driven growth, especially in cancers that depend on estrogen. Fistent Injection works by blocking the effect of estrogen on these cancer cells and reducing their ability to multiply. This helps slow down or stop tumor growth, relieve symptoms, and improve treatment outcomes in people with breast cancer.
Side effects of Fistent Injection
- Nausea
- Vomiting
- Back pain
- Fatigue
- Hot flashes
- Decreased appetite
- Constipation
- Bone pain
- Joint pain
- Cough
- Injection site pain
- Headache
- Pain in extremity
- Musculoskeletal (bone, muscle or joint) pain
- Breathlessness
- Increased alanine aminotransferase
- Increased aspartate aminotransferase
- Weakness
How to use Fistent Injection
How Fistent Injection works
All substitutes for Fistent Injection
Strantas 250mg Injection
Fuvestrol Injection
Fasnorm 250mg Injection
Fulvether 250 Injection
Faslomax 250mg Injection
Quick tips
- Fistent Injection is used for the treatment of hormone dependent breast cancer.
- It should only be taken by women who have undergone menopause and cannot become pregnant.
- It is given as a slow injection into the muscles (intramuscular) of your buttock.
- Inform your doctor if you have any bleeding disorder, kidney or liver disease or if you are receiving any medicines to prevent blood clots.
- Do not take Fistent Injection if you are pregnant or breastfeeding.
- Fistent Injection is used for the treatment of hormone dependent breast cancer.
- It should only be taken by women who have undergone menopause and cannot become pregnant.
- It is given as a slow injection into the muscles (intramuscular) of your buttock.
- Inform your doctor if you have any bleeding disorder, kidney or liver disease or if you are receiving any medicines to prevent blood clots.
- Do not take Fistent Injection if you are pregnant or breastfeeding.
Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney
Limited information is available on the use of Fistent Injection in these patients. No dose adjustment is recommended in patients with mild to moderate kidney disease.

Liver
Interaction with drugs
Conjugated Estrogens (Oral Route)
Dehydroepiandrosterone (Micronized) (Oral Route)
Estradiol (Oral Route)
Estradiol (Injection Route)
Frequently asked questions
Fact Box
Chemical Class
Habit Forming
Therapeutic Class
Action Class
Related lab tests
References
- Masters SB. Hypothalmic & Pituitary Hormones. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. p. 718.
- Moy B, Lee RJ, Smith M. Natural Products in Cancer Chemotherapy: Hormones and Related Agents. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. New York, New York: McGraw-Hill Medical; 2011. pp. 1759-60.
- Fulvestrant. Luton, Bedfordshire: AstraZeneca UK Limited; 2004 [revised 6 Sep 2018]. [Accessed 03 Apr. 2019] (online) Available from:
- Fulvestrant. Cheshire, England: AstraZeneca UK Limited; 2002 [revised Jul. 2011]. [Accessed 03 Apr. 2019] (online) Available from:
- Central Drugs Standard Control Organisation (CDSCO). [Accessed 04 Apr. 2019] (online) Available from:




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Address: Adley Formulation, SCO- 42, Sector 12, Panchkula-134112, Haryana, India
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Lab tests offered by us
- CBC (Complete Blood Count)
- FBS (Fasting Blood Sugar)
- Thyroid Profile Total (T3, T4 & TSH)
- HbA1c (Glycosylated Hemoglobin)
- PPBS (Postprandial Blood Sugar)
- Lipid Profile
- Vitamin D (25-Hydroxy)
- Urine R/M (Urine Routine & Microscopy)
- Coronavirus Covid -19 test- RT PCR
- LFT (Liver Function Test)
- KFT (Kidney Function Test)
- TSH (Thyroid Stimulating Hormone) Ultrasensitive
- ESR (Erythrocyte Sedimentation Rate)
- Uric Acid, Serum
- Vitamin B12
- CRP (C-Reactive Protein), Quantitative
- Urine C/S (Urine Culture and Sensitivity)
- Serum Electrolytes
- Serum Calcium
- Serum Creatinine
- Diabetes Screening (HbA1C & Fasting Sugar)
- KFT with Electrolytes (Kidney Function Test with Electrolytes)
- Cholesterol - Total
- Hb (Hemoglobin)
- Complete Hemogram (CBC & ESR)
















