
Finasteride (or Firide) is a medication used to alter male hormone levels. It lowers the amount of dihydrotestosterone (DHT) in your body. Usually, it’s prescribed for men with prostate problems, as DHT causes the prostate to grow larger. But it can also help men with hair loss.
Male pattern baldness affects millions of men every year. Known as androgenic alopecia, it’s caused by genetic and hormonal factors linked to DHT. Finasteride is therefore often prescribed to men with baldness to help slow the hair loss. It won’t cause all your old hair to grow back. But it can reduce the speed of loss.
Finasteride (or Firide) is a prescription medication that changes how male sex hormones are produced in the body. It inhibits the 5-alpha reductase enzyme, responsible for converting testosterone to dihydrotestosterone (DHT). High levels of DHT are associated with male pattern baldness. So, by lowering levels, it can slow or prevent baldness.
In some cases, finasteride may lead to minor hair regrowth. However, it’s primarily used to slow the rate of loss.
Hair loss isn’t all the same. It can be total, partial, or affect specific patches. You can often tell the underlying cause based on the pattern of hair loss.
Even if you don’t notice immediate hair loss, weak or brittle hair is characteristic of a nutritional deficiency. In pattern baldness, hair is usually normal everywhere but at the hair loss site.

Finasteride is mainly intended to treat male pattern baldness. But how do you identify if that’s the cause? The classic sign is hair loss in the crown or top of the head. The hairline also begins to move backward, creating an M- or W-shaped hairline in men.
It will continue to move backward until the two patches meet up, and there is no more hair on the scalp. The hair will continue to grow around the sides of the head and elsewhere on the body.
Finasteride tackles the underlying cause of male pattern baldness — DHT. It can decrease DHT production by around 70%. By lowering scalp DHT, it slows hair loss and causes some hair regrowth. Two meta-analyses found that finasteride caused around 15% hair regrowth.
The medication is most effective in the crown but can reduce hair loss in all areas of the scalp. It’s not effective in treating hair loss in women, however.
Patients are advised to take one (1mg) tablet per day. It’s taken with water, with or without food. Never take two doses to make up for a missed dose.
Yes. Finasteride is available in Thailand, but it is a prescription medicine and should be used under medical supervision. In practice, some pharmacies may sell it more casually, but the safer and more reliable option is to order through a licensed provider that can assess whether it is appropriate for you and help monitor for side effects.
In Thailand, both Firide and Propecia are available. Both contain the same active ingredient, finasteride, but they are made by different manufacturers.
Because finasteride can cause side effects, it is not something to buy casually from just anywhere. A proper consultation helps confirm that the treatment is suitable for you, explains how to use it correctly, and gives you a clear point of contact if you develop side effects or have concerns during treatment. This is especially important with prescription medicines used over the long term.

Yes. Finasteride is legal in Thailand and widely available, but it is classified as a prescription medicine. This means it should be prescribed by a doctor and used under medical supervision.
While you may find it sold more casually in some pharmacies, this is not the recommended route. Ordering through a licensed provider ensures you receive genuine medication, the correct dosage, and proper guidance on use and potential side effects.
For a safer and more reliable option, you can complete a consultation online and have finasteride delivered directly to you, without the need to visit a clinic in person.
If you’re considering finasteride, EDD Health Thailand offers a safe, medically supervised way to get started, with proper medical guidance.
Click here to purchase Finasteride safely, legally, and discreetly.
