By their 30s, about half of men notice changes in hair density.
About AGA
AGA, which stands for Androgenetic Alopecia, is also known as male pattern hair loss.
By their 30s, about half of men notice changes in hair density, and among them, roughly 50% feel that the hair on their forehead hairline or the top of their head has thinned.
Generally, genetics and male hormones (such as dihydrotestosterone, DHT) are considered the main causes. According to the Japanese Dermatological Association: Guidelines for the Treatment of Male Pattern Hair Loss, the following medications are Grade A (strongly recommended).
Note: The prices listed are for the medications only (excluding tax). Consultation fees are not charged.
Dutasteride 0.5mg
Domestic generic of XAGALO, oral medication – 1 month supply
Price
¥4,800 (¥5,280 tax included)
Finasteride 1mg
Generic Propecia, 1-month supply
Price
¥3,800 (¥4,180 tax included)
About Side Effects
Oral medication:
Liver function changes
Erectile dysfunction
Topical medication:
Itching of the scalp
Rash or irritation
Headache
Dosage and Administration
Name
How to Take
Dosage
Dutasteride 0.5mg
Oral
Take 1 tablet orally once a day
Finasteride 1mg
Oral
Take 0.2 mg orally once a day. The dose may be increased if necessary, but do not exceed 1 mg per day.