Does Finasteride Lower Testosterone: Exploring the Link

Sourav Gupta
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Dr. Kaushal

Review medical content on WOW Rx Pharmacy, so that accurate drug use information is easily accessible to everybody.
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Does Finasteride Lower Testosterone

Finasteride treats Male Pattern Baldness (Androgenetic Alopecia) at the crown and in the middle of the scalp.

This medication is generally recommended for adult men only.

Finasteride tablets work by reducing the Dihydrotestosterone (DHT) levels in the body.

It is considered safe and effective.

But, there has been some concern about its potential to lower Testosterone levels in the body.

According to a study, Finasteride treatment reduces DHT by more than 90 percent and DHT serum levels by 70%.

But does Finasteride lower testosterone levels? Continue reading to know about it.

Good to know:
Vegan men tend to have higher testosterone levels than vegetarians and meat eaters.

How Finasteride works

Finasteride is a medication that can help prevent hair loss in men.

It is an FDA-approved medicine for hair loss.

It works by blocking the production of the Dihydrotestosterone (DHT) hormone.

This hormone is responsible for causing Male Pattern Baldness or Androgenetic Alopecia.

DHT is produced in the body as a byproduct of Testosterone.

It plays a vital role in developing sexual organs and body hair during puberty.

Yet, in adult men, DHT can attach to receptors in the scalp and cause hair follicles to shrink.

It further disrupts the growth of the hair cycle and leads to hair loss, and often results in a receding hairline or around the crown.

Finasteride tablets reduce the levels of DHT in the body.

This further protects hair follicles from damage and can even help to regrow hair in some cases.

It can also help to prevent further hair loss from occurring.

Finasteride treatment is valuable for men who are experiencing Male Pattern Baldness.

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  • The relationship between DHT and Testosterone levels

    Can Masturbation Cause Hair LossSource: pixelshot
    Hair loss

    DHT and Testosterone are male sex hormones, DHT being a byproduct of Testosterone.

    It plays a role in physical changes during puberty, like hair growth and male sexual organs.

    Testosterone plays a critical role in muscle and bone mass, sex drive, and other functions.

    DHT is much more potent than testosterone and can contribute to hair loss and enlarged prostate.

    High levels of DHT can also cause acne and excessive growth of hair.

    Medications like Finasteride can help reduce levels of DHT to improve hair appearance.

    Maintaining healthy hormone levels is important for well-being.

    Consult healthcare professionals if experiencing any hormone-related symptoms.

    Does Finasteride lower Testosterone levels

    Hair loss due to masturbationSource: Antonio_Gravate
    Hair loss due to masturbation

    Finasteride is used to treat Androgenetic Alopecia by reducing the levels of DHT.

    It may also cause a slight increase in Testosterone levels in some individuals.

    Generally, the increase in Testosterone level is mild and is of no concern.

    Finasteride is prescribed with Testosterone replacement therapy in men with low Testosterone levels.

    The effects of Finasteride tablets on the levels can vary from person to person.

    Some men may experience more significant changes than others.

    How much does 1 mg of Finasteride lower DHT

    Finasteride tablets are approved by the FDA in the year 1992 as a 1mg dosage for hair growth.

    It helps to decrease the levels of Dihydrotestosterone (DHT).

    As per a study published by the National Center of Biotechnology Information, Finasteride can decrease the levels of DHT by upwards of 90% and serum DHT levels by 70%.

    During hair growth treatment with Finasteride, it does not lead to 100% DHT suppression; hair loss can be slowed but cannot be stopped completely.

    Potential side effects of Finasteride on sexual function

    Finasteride is generally safe but can cause side effects like any medication.

    One of Finasteride’s most reported side effects is reduced sexual function.

    Some men may experience decreased sex drive, Erectile Dysfunction, or difficulty achieving orgasm.

    The exact cause of these side effects is not fully understood.

    But they may be related to the medication’s impact on hormone levels. 

    Finasteride reduces the amount of DHT in the body.

    It can affect the balance of hormones involved in sexual function and can also cause Post-Finasteride Syndrome.

    Consult your doctor if you face any side effects from using Finasteride.

    How to cure Post-Finasteride Syndrome

    Post-Finasteride Syndrome is a rare condition that some men may experience after taking Finasteride.

    It is classified by continuous sexual, physical, and mental health side effects even after stopping Finasteride.

    Taking about cure for Post-Finasteride Syndrome, there is no cure or treatment available for this syndrome.

    If you are experiencing side effects such as erectile dysfunction after taking Finasteride, consult your doctor.

    They may recommend another alternative hair growth medicine, such as Minoxidil.

    Alternative medicines for Finasteride

    Your doctor may prescribe Minoxidil, which is very effective for treating hair loss.

    Minoxidil salt is available as an over-the-counter medicine and is FDA-approved for hair growth.

    It is a vasodilator medicine that helps slow hair loss and promote hair growth.

    Moreover, it is used in treating Male Pattern Baldness, also called Androgenetic Alopecia.

    Minoxidil helps by increasing the blood flow around the follicles.

    It also stimulates the follicle movement to the growth phase and extends the growth phase.

    Other factors that affect Testosterone levels

    Factors like age, lifestyle, and health conditions can affect Testosterone levels in men.

    Some of the factors that can impact testosterone levels include

    • Age: Testosterone levels naturally decrease as men age. With levels peaking in adolescence and early adulthood before gradually declining
    • Obesity: Being overweight or obese can lower testosterone levels in men. As excess body fat can convert testosterone into estrogen
    • Chronic illness: Certain chronic illnesses, such as diabetes and kidney disease, can affect testosterone levels
    • Medications: Certain medications, including corticosteroids and opioids, can lower testosterone levels in men
    • Stress: Stress can impact testosterone levels by increasing the production of cortisol. It is a hormone that can interfere with testosterone production
    • Sleep: Poor sleep quality or sleep deprivation can lower testosterone levels in men

    Consult a healthcare professional if you are concerned about your testosterone levels.

    They can identify any underlying causes of low testosterone and various treatment options.


    Finasteride is a medication for treating male pattern baldness and prostate enlargement.

    But, this does not cause any adverse effects on sexual function or well-being.

    Finasteride is an effective treatment that can improve many men’s quality of life.

    It is crucial to consult with a healthcare professional before taking or stopping any medication.

    Overall, the benefits of Finasteride generally outweigh the potential risks.

    Frequently Asked Questions

    How much does Finasteride reduce Testosterone?

    Finasteride can reduce the body’s Dihydrotestosterone (DHT) levels by 70 to 80%. In contrast, there is a slight decrease in their Testosterone levels of about 10 to 15%. 

    Why does Finasteride cause ED if it increases Testosterone?

    While Finasteride increases testosterone levels, it may also lead to a decrease in nitric oxide levels. This further affects blood flow to the male genital organs and causes ED in some men. But, not all men who take Finasteride will experience this side effect.

    Can Finasteride cause permanent damage?

    Finasteride has been linked to sexual side effects that may endure after the drug is stopped. In clinical research, 20% of male pattern hair loss men have had sexual dysfunction for about six years. It raises the possibility that the dysfunction might be long-lasting.

    Does Finasteride ruin hormones?

    Finasteride can cause changes in hormone levels, but it does not “ruin” hormones. Side effects such as reduced libido and erectile dysfunction can go after stopping the medication.

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