Flomax Vs Finasteride: Which One Is Better For Your Hair Loss?

Medically reviewedby Dr. Amy Revene M.B.B.S.
WrittenbyLuat Duong
Last updated

Hair loss, an issue that affects millions worldwide, often prompts individuals to seek effective treatments to regain their confidence and youthful appearance. 

Two names that frequently emerge in the battle against hair thinning are Flomax and Finasteride. 

While both are prominent in the realm of hair restoration, understanding their distinct mechanisms, benefits, and potential side effects is crucial. 

In this blog post, we'll delve deep into the contrasts and comparisons between Flomax and Finasteride to help you determine which might be the better choice for your hair loss journey. 

What is Flomax?

flomax vs finasteride

Flomax (tamsulosin) is a medication used to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia, BPH). It helps to relax the muscles in the prostate and bladder, allowing urine to flow more easily. It is not used to treat hair growth or hair loss. 

How does Flomax work?

Flomax (tamsulosin) works by relaxing the muscles in the prostate and bladder, improving urine flow and relieving symptoms of BPH. It belongs to a class of drugs known as alpha blockers.

Alpha blockers, like tamsulosin, function by blocking the action of certain nerve signals that cause muscle contractions in the prostate and bladder. By preventing these contractions, Flomax eases the passage of urine and reduces BPH symptoms. 

It's worth noting that while Flomax alleviates the symptoms, it doesn't treat the underlying enlargement of the prostate. Common symptoms alleviated include difficulty starting urine flow, weak stream, and frequent or urgent urination.

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Pros and cons of Flomax


  • Effective relief: Alleviates symptoms of BPH such as difficulty starting urine flow and frequent urination.
  • Improved urine flow: Relaxes muscles in the prostate and bladder, improving urine flow.
  • Non-surgical: Offers a non-surgical option for treating BPH symptoms.
  • Widely prescribed: Tried and tested, with many men finding relief from its use.


  • Blood pressure: Can lower blood pressure, potentially leading to dizziness or fainting.
  • Prolonged Erection: Rare risk of a painful, prolonged erection.
  • Doesn't cure BPH: Relieves symptoms but doesn't treat the underlying prostate enlargement.
  • Drug interactions: Can interact with other medications, necessitating careful management and monitoring.
  • Regular monitoring: Requires regular check-ups to monitor for side effects and efficacy.

Are there any side effects of Flomax?

Emergency symptoms

  • Allergic reactions like hives, difficult breathing, swelling in the face or throat.
  • Severe skin reactions: fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling.

Serious side effects (Seek medical attention)

  • Light-headedness or feeling like you might pass out.
  • Painful erection lasting 4 hours or longer.

Common side effects

  • Abnormal ejaculation, decreased semen volume.
  • Dizziness, drowsiness, weakness.
  • Runny/stuffy nose, sore throat, cough.
  • Back pain, chest pain, headache.
  • Nausea, diarrhea.
  • Tooth problems.
  • Blurred vision.
  • Sleep issues (insomnia).
  • Decreased interest in sex.

What is Finasteride?

flomax vs finasteride

Finasteride is a medication primarily used to treat enlarged prostate (benign prostatic hyperplasia, BPH) and male pattern baldness. Finasteride is classified as a 5-alpha reductase inhibitor. 

By reducing levels of DHT, it not only helps in shrinking an enlarged prostate but also slows hair loss and can promote hair growth in men with male pattern baldness. This hair growth benefit sets it apart from other BPH treatments like tamsulosin, which do not affect hair growth or loss.

How does Finasteride work?

Finasteride operates by inhibiting the enzyme 5-alpha reductase, which plays a crucial role in converting testosterone to dihydrotestosterone (DHT). In the context of benign prostatic hyperplasia (BPH), DHT is a hormone that can induce prostate growth. 

By lowering the levels of DHT, finasteride can help shrink the enlarged prostate, offering relief from symptoms like difficulty in urinating and frequent urination. 

On the other hand, when considering male pattern baldness, DHT has a detrimental effect on hair growth. It shortens the growth phase of hair follicles and extends their resting phase, leading to the thinning and eventual loss of hair. 

By reducing DHT levels in the scalp, finasteride can slow down hair loss and, in some cases, even promote regrowth in men suffering from male pattern baldness.

Pros and cons of Finasteride


  • Treats BPH: Effective in shrinking an enlarged prostate and alleviating BPH symptoms.
  • Promotes hair growth: Can slow hair loss and promote regrowth in men with male pattern baldness.
  • Oral administration: Simple to take as a once-daily pill.
  • Long-term data: Has been on the market for years with extensive research supporting its efficacy and safety.


  • Sexual side effects: Can cause decreased libido, erectile dysfunction, and other sexual side effects.
  • Not for women: Can cause birth defects if taken by pregnant women.
  • Depression and mental effects: Some users report mood changes or depression.
  • Decreased prostate-specific antigen (PSA): Can affect PSA levels, a marker for prostate cancer, complicating screening.
  • Consistent use required: For hair loss, benefits may be lost if the medication is discontinued.

Are there any side effects of Finasteride?

Yes, finasteride can have side effects. Here are some of the potential side effects associated with finasteride:

  • Decreased libido (sexual desire)
  • Erectile dysfunction
  • Decreased volume of ejaculate
  • Testicular pain
  • Depression
  • Feelings of anxiety
  • Mental/mood changes
  • Itching/swelling (especially of the face, tongue, or throat)
  • Severe dizziness
  • Difficulty breathing

An effective alternative to Flomax and Finasteride

flomax vs finasteride

If you're exploring alternatives to Flomax and Finasteride, especially for hair growth and strengthening, Bio-Pilixin Serum may be an ideal solution.

Key features:

  • Quick results: In clinical studies, users reported observing changes in as few as 45 days.
  • High satisfaction: Clinical studies indicate that 93% of users were satisfied with their experience.
  • Safety first: The serum is drug-free, making it safe for daily application.

Premium ingredients

The Bio-Pilixin Serum boasts a potent blend of scientifically-backed ingredients, ensuring both safety and effectiveness. Moreover, it embraces an eco-conscious approach with all ingredients being 100% vegan.

  • Capilia Longa: An innovative natural compound, Capilia Longa has been shown to reduce hair loss by up to 89% and enhance hair density by up to 52% in certain studies.
  • Niacinamide: Known for its reinforcing properties, niacinamide bolsters hair strength by boosting the production of keratin – a vital protein constituting about 90% of the hair shaft.
  • Vanillyl Butyl Ether: This unique ingredient induces a gentle warming sensation on the scalp, potentially enhancing blood circulation. Improved blood flow means better nutrient and oxygen delivery to the scalp, fostering an environment conducive to hair growth.

Money-back guarantee

For added assurance, Bio-Pilixin® Serum comes with a money-back guarantee, giving you the option for a refund if you're not satisfied.

Bio-Pilixin Serum, with its blend of scientific methods and natural ingredients, offers another option alongside traditional approaches to hair care.

It's a holistic approach to hair care, amalgamating nature's best with cutting-edge science. Always consult with a healthcare or dermatological professional before starting any new hair treatment regimen.

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Flomax vs Finasteride: What are the differences?

When considering the treatment of benign prostatic hyperplasia (BPH), both tamsulosin (Flomax) and finasteride are frequently prescribed. 

However, while they both target the symptoms of an enlarged prostate, their mechanisms of action and additional implications differ significantly.

Mechanism of action

  • Tamsulosin (Flomax): An alpha-blocker, tamsulosin operates by relaxing the bladder and prostate muscles. This relaxation results in improved urine flow and strengthened urine stream, alleviating symptoms of BPH. However, it doesn't affect the size of the prostate.
  • Finasteride: Finasteride functions as a 5-alpha-reductase inhibitor. By inhibiting the conversion of testosterone to DHT (a key contributor to BPH), it addresses the underlying cause of the enlarged prostate. This mechanism not only alleviates symptoms but can delay the progression of BPH.

Dosage and administration

  • Tamsulosin (Flomax): Generally administered as 0.4 mg capsules once daily. While initial effects may be felt within 48 hours, full relief can take up to six weeks. The dose may be increased in certain cases under a physician's guidance.
  • Finasteride: For BPH treatment, the recommended dosage is 5 mg daily. When targeting male pattern hair loss, the dosage is typically 1 mg daily.

Hair loss/growth implications

  • Tamsulosin (Flomax): Tamsulosin doesn't have any significant effect on hair growth or hair loss.
  • Finasteride: Apart from its use in treating BPH, finasteride is known to treat male pattern baldness. It promotes hair growth and density by reducing DHT levels in the scalp.

Side effects

  • Tamsulosin (Flomax): Common side effects include dizziness, lightheadedness, and potential allergic reactions. Rare but serious side effects include prolonged erection.
  • Finasteride: Potential side effects include breast tissue changes, decreased sperm count, and a slightly increased risk of prostate cancer. It can also affect PSA test results, which are used for prostate cancer screening. Additional side effects include cold sweats, dizziness, and confusion.

Special considerations

  • Tamsulosin (Flomax): Should not be combined with other alpha-blockers or strong inhibitors like ketoconazole. Initial doses may cause dizziness or fainting.
  • Finasteride: Not suitable for women or children. It can be absorbed through the skin and may cause birth defects if handled by pregnant women.

Flomax vs Finasteride: Which one is better for you?

When comparing Flomax (tamsulosin) and Finasteride for treating BPH, the best choice depends on individual needs and priorities. Tamsulosin acts quickly, providing relief within 48 hours and targets BPH symptoms by relaxing prostate and bladder muscles. 

On the other hand, Finasteride tackles the root cause by reducing DHT, a hormone contributing to prostate enlargement, and might take months for full benefits to manifest. 

An added advantage of Finasteride is its ability to promote hair growth in men with male pattern baldness. 

It's essential to consult with a doctor to discuss the pros, cons, and potential side effects of each medication and determine the most suitable treatment based on individual circumstances and health conditions.


Navigating the intricate landscape of hair loss treatments can be daunting, especially with a plethora of options available. 

Both Flomax and Finasteride stand out as potent allies in the fight against hair thinning and BPH. While Flomax focuses on symptom relief by relaxing muscles, Finasteride takes a dual approach, addressing both prostate enlargement and male pattern baldness. 

However, like any medical decision, it's imperative to align choices with individual health profiles and desired outcomes.

Alternatives like Bio-Pilixin Serum are part of the expanding range of options in the field of hair care solutions.

As always, a personalized consultation with a healthcare professional remains paramount to ensure that the chosen path aligns with one's holistic well-being and goals. 


  1. https://pubmed.ncbi.nlm.nih.gov/12526285/ 

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Luat Duong

Luat Duong is a Copenhagen-based writer and content strategist specializing in hair loss and health. His work has been featured in MyHealthGuide, The Right Hairstyles, and Woman's Era. He is a graduate of Vaasa University. You can connect with him on LinkedIn.