How To Use Dutasteride For Hair Loss & Does It Aid Regrowth?

Know more about the prescription drug used for treating hair fall and its effects on the body.

Medically reviewed by Dr. Somodyuti Chandra, MBBS, MD DVL & DNB Dr. Somodyuti Chandra Dr. Somodyuti ChandraMBBS, MD DVL & DNB facebook_icon
Written by , MSc Annie Jangam MSc linkedin_icon Experience: 11 years
Edited by , BTech Anjali Sayee BTech linkedin_icon Experience: 7 years
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Dutasteride for hair loss is popular as an effective treatment option (1). Hair loss is a common problem faced by both women and men. To some extent, it can impact psychological well-being and may also affect self-esteem. Many people claim that dutasteride is effective for hair loss. Read on to know if the claims are real or not, how dutasteride may work, and possible side effects which result from its consumption.

What Is Dutasteride?

Dutasteride is a common medication used to treat benign prostatic hyperplasia (2). It helps prevent the enlargement of the prostate gland. Dutasteride is also used for treating hair loss. It works by preventing the conversion of testosterone to DHT (or dihydrotestosterone). It is not available over the counter and can be obtained only with a doctor’s prescription. You get it in the form of a liquid-filled capsule.

Though dutasteride may help prevent hair loss, it has some risks. We have listed them in the next section. Most of these risks are based on anecdotal evidence.

Risks Associated With Dutasteride

  • Allergies: Dutasteride may cause allergies in some individuals. Practice caution if you have a history of allergies. Discuss with your doctor.
  • Pediatric: Dutasteride is not meant for children. It has not been tested on this age group for efficacy.
  • Elderly: There is not enough evidence to suggest that dutasteride could be safe for the elderly. Consult a doctor.
  • Pregnant Or Breastfeeding: Evidence suggesting the safety of dutasteride in pregnant or breastfeeding women is lacking. Stay safe and avoid use.
  • Drug Reactions: Dutasteride may interact with certain drugs. Discuss your existing medications with your doctor. They may reduce or change the dose accordingly. Certain medications Dutasteride may interfere with include Cimetidine, Ciprofloxacin, Diltiazem, Ketoconazole, Ritonavir, and Verapamil (2).
  • Other Interactions: Dutasteride may also interfere with certain meals or types of food. Using it with alcohol or tobacco may cause adverse effects. Consult your doctor for more information.
  • Specific Medical Problems: Those with ailments like liver disease must be wary while using dutasteride. More research is warranted in this regard. Talk to your doctor before taking the medication.

Some individuals also claim to have experienced breathing difficulty, chest discomfort, dilated neck veins, weight gain, excessive fatigue, difficulty in swallowing, flaking or blistering of the skin, itchiness, and rapid heartbeat. Rarely, dutasteride is also believed to cause sexual dysfunction.

How Should You Use Dutasteride?

Dutasteride should be used as directed by a healthcare professional. You should follow the frequency, dosage, and duration as directed.

  • You may take it with or without food.
  • You must swallow the capsule and not crush or chew it.
  • Check the patient information leaflet before taking the medication. Read all the instructions and get all your doubts clarified by your doctor.

A YouTuber shares his experience with combining dutasteride and finasteride for hair loss treatment. He also addresses the prevalence of side-effect stories on the internet, cautioning viewers to consider the overall low percentage of reported cases. He also mentions, “Taking the test ride seems like a nice step to maintaining and continuing to regrow my lost hair (i).”

In the next section, we will find out how dutasteride helps with hair regrowth.

How Does Dutasteride Help Regrow Hair?

Each hair strand goes through four stages of the growth cycle, namely anagen (or growth phase), catagen (or regression phase), telogen (or the resting phase), and exogen (or the shedding phase).

Androgenetic alopecia or AGA occurs during the anagen phase. The anagen phase becomes shorter, leading to hair follicle miniaturization. AGA is caused due to the conversion of testosterone to DHT, a process triggered by the 5-alpha-reductase enzyme. Dutasteride inhibits this enzyme and may help prevent hair loss (3). In a study, varied hair regrowth was observed in patients treated with dutasteride. However, dutasteride does not offer a guarantee for hair regrowth. Its results vary between individuals (4).

One of the most recommended hair loss treatments is using minoxidil. But how does it vary from dutasteride? Scroll down to find out.

Dutasteride Vs. Minoxidil: Are They The Same?

Both dutasteride and minoxidil are not FDA-approved for hair loss in their oral form (5). However, minoxidil is approved as a topical 5% foam and 5 or 2% solution, but dutasteride is not. It is only approved in some countries like South Korea, Japan, and Taiwan for hair loss management.

Additionally, they both treat hair loss in different ways. Research shows that minoxidil acts as a vasodilator to widen the blood vessels to increase blood flow to the hair follicles and lead to hair regrowth. It may also influence how long hair stays in the growing and resting phase (6). Dutasteride works by inhibiting the action of the enzyme 5-alpha-reductase that converts testosterone to DHT, a hormone that can contribute to hair loss (6).

protip_icon Did You Know?
Dutasteride is often prescribed in combination with oral or topical minoxidil in hair loss treatments.

Dutasteride is often compared with finasteride, which is another medication popular for treating hair loss. But which of the two is more effective?

Finasteride Vs. Dutasteride For Hair Loss

In a study, both finasteride and dutasteride were used on patients with androgenetic alopecia (5). It was found that 30% to 50% of patients with androgenetic alopecia did not show any significant improvement with finasteride. However, 78% of the patients showed improvement with dutasteride, while the remaining showed no significant change. The improved lot also observed an increase in their hair thickness and density by 10% (8).

The study concludes by stating that dutasteride can be used as an alternative treatment for patients who have not responded to treatment with finasteride.

In yet another study, dutasteride was more effective than finasteride for controlling hair loss (1). However, both showed similar rates of adverse reactions in sexual dysfunction.

How Long Does Dutasteride Take To Work For Hair Loss?

Dutasteride may take three months to six months or even longer to show results. This duration depends on the severity of hair loss and the patient’s pre-existing health condition. Keep your healthcare professional updated about how you are feeling during treatment.

protip_icon Quick Tip
It is recommended to take a 0.5 mg Dutasteride capsule daily for 3-6 months to prevent hair loss and see hair regrowth.

Dutasteride for hair loss treatment does not offer guaranteed regrowth, and its results may vary from person to person. However, it has been shown to be more effective than finasteride, another medication used to prevent hair loss. On the other hand, dutasteride is associated with several adverse effects, like allergic reactions and drug interactions. Also, children, the elderly, and pregnant women must not use this drug due to the lack of evidence guaranteeing its safety. Above all, it is a prescription drug, so strictly follow the dosage, duration, and frequency as recommended by a medical professional.

Frequently Asked Questions

Will dutasteride make you sleepy?

Yes, dutasteride may cause some people to become drowsy and sleepy.

Is there a substitute for dutasteride?

Yes. Finasteride can be used as a substitute for dutasteride.

Key Takeaways

  • Dutasteride prevents the conversion of testosterone to dihydrotestosterone, reducing hair loss.
  • Though it can treat hair loss, it also may pose some potential risks like allergies and drug reactions.
  • Dutasteride may take three to six months or even longer to work on hair loss.

Explore hair loss solutions for male baldness with dutasteride in the video below. It also shows their impact on hair loss and fertility and gives a thorough review of using dutasteride. Click here to learn more and make informed decisions.


Articles on StyleCraze are backed by verified information from peer-reviewed and academic research papers, reputed organizations, research institutions, and medical associations to ensure accuracy and relevance. Read our editorial policy to learn more.

  1. The efficacy and safety of dutasteride compared with finasteride in treating men with androgenetic alopecia: a systematic review and meta-analysis
  2. Dutasteride: A Review of Current Data on a Novel Dual Inhibitor of 5α Reductase
  3. Dutasteride in Androgenetic Alopecia: An Update
  4. Genetic variations associated with response to dutasteride in the treatment of male subjects with androgenetic alopecia
  5. Comparison of oral minoxidil, finasteride, and dutasteride for treating androgenetic alopecia
  6. Minoxidil: a comprehensive review
  7. Long-term effectiveness and safety of dutasteride versus finasteride in patients with male androgenic alopecia in South Korea: a multicentre chart review study
  8. Effect of dutasteride 0.5 mg/d in men with androgenetic alopecia recalcitrant to finasteride

(i) I took Dutasteride and Finasteride for Hair Loss | Here’s What Happened!


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Dr. Somodyuti Chandra
Dr. Somodyuti ChandraMBBS, MD DVL & DNB
Dr. Somodyuti is a board-certified dermatologist with 9 years of experience, who specializes in skin, hair, and nail problems, laser surgery, and esthetic procedures. After completing her MBBS and MD DVL and DNB, she went on to do DNB Dermatology from the National Board (New Delhi) and MRCP - SCE Dermatology, from the Royal College of Physicians, UK.

Read full bio of Dr. Somodyuti Chandra