Euflex (Flutamide) Medication

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Generic Alternative - Euflex (Flutamide)

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Drug Description


Euflex is a prescribed medication used alongside luteinizing hormone-releasing hormone (LHRH) agonists to manage advanced prostate cancer in men. 

Categorized as a nonsteroidal antiandrogen (testosterone antagonist), Euflex works by blocking the effects of androgen (a male hormone that fuels prostate cancer growth and spread), thereby impeding the proliferation and dissemination of malignant cells. 

Uses and Dosage 

Before taking Euflex and with each prescription refill, carefully review the accompanying medication guide and patient information leaflet. Seek guidance from your doctor or pharmacist if you have any inquiries or need additional information. 

Euflex dosage may vary per individual based on their medical conditions and treatment response. 

This medication is typically taken thrice daily, either with a meal or on an empty stomach. 

To achieve the best outcome, take Euflex regularly at the same times each day, exactly as prescribed by your doctor. 

Keep taking Euflex alongside the LHRH agonist treatment, even if you are feeling well. Consult your doctor before discontinuing either medication, as abrupt cessation may promote faster cancer spread. 

Side Effects 

Listed below are the potential side effects of Euflex. Inform your doctor should any of these effects continue or worsen. 

Common Side Effects 

  • Breast swelling or tenderness 
  • Hot flashes 
  • Vomiting, nausea, diarrhea 
  • Impotence and loss of interest in sex 

Serious Side Effects 

  • Mental/mood changes (e.g., depression, anxiety, nervousness) 
  • Breast lump 
  • Confusion 
  • Sudden severe fatigue 
  • Weakness 
  • Pale skin 
  • Bluish fingernails/lips/skin 
  • Fast heartbeat at rest 
  • Feeling short of breath at rest 
  • Severe liver problems, with symptoms such as: 
    • Nausea, upper stomach pain, loss of appetite 
    • Itching, fatigue, flu-like symptoms 
    • Dark urine, pale stools 
    • Jaundice (yellowing of the skin or eyes) 

Tell your doctor immediately if you experience any of the serious side effects above. 

Allergic Reactions 

In rare instances, Euflex may provoke a critical allergic response. Promptly seek medical attention should any symptoms of an allergic reaction manifest, such as: 

  • Rash 
  • Breathing difficulties 
  • Severe dizziness 
  • Itching or swelling (particularly of the face, tongue, or throat) 

This list does not cover all side effects of Euflex. Notify your doctor should you observe any other effects. 


Before starting treatment with Euflex, inform your doctor if you have any known allergies, particularly to flutamide or any other ingredient in this tablet. 

Disclose your medical history with your doctor before taking Euflex to assess its appropriateness for your condition, particularly if you have a history of: 

  • Liver disease 
  • Enzyme deficiency like glucose-6-phosphate dehydrogenase (G6PD)  
  • Smoking 
  • Hemoglobin M disease 

Inform all your healthcare providers of your complete medication regimen, including prescription and nonprescription medicines, vitamins, and herbal supplements, to mitigate the potential risk of drug interaction with Euflex. 

Some of the products that may interact with Euflex are: 

  • Testosterone (patch, gel, injection) 
  • Anabolic steroids (including over-the-counter androgens/anabolics/testosterone precursors) 
  • Dehydroepiandrosterone (DHEA) 
  • Warfarin 

To minimize the risk of dehydration caused by Euflex-related diarrhea, follow your doctor’s advice by staying well-hydrated, modifying your diet to include more whole grains, vegetables, and fruits while reducing dairy and discontinuing laxatives. In severe or persistent cases of diarrhea, your doctor may prescribe anti-diarrhea medication such as loperamide if needed. 

Euflex is exclusively intended for use in males. It can be harmful to a developing fetus if taken by pregnant women. In case of accidental use during pregnancy, consult your doctor. 

Moreover, Euflex may potentially cause congenital disabilities if a pregnant woman is exposed to it. 

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Quality Prescription Drugs has provided information from third parties intended to increase awareness and does not contain all the information about Euflex (Flutamide). Talk to your doctor or a qualified medical practitioner for medical attention, advice, or if you have any concerns about Euflex (Flutamide).