Propecia (generic name Finasteride), the first medication to treat androgenetic alopecia, was developed to treat male pattern hair loss in the top of head and anterior mid-scalp area. Propecia tablets for oral administration are film-coated tablets that contain 1 mg or 5 mg of finasteride.
When high levels of a naturally occurring hormone called DHT are present in the scalps of men genetically disposed to Male Pattern Hair Loss, the growth phase of hair is shortened. Most men may begin to see the first benefit of Propecia-slowing hairloss as early as 3 months. In clinical studies, it was not just 'peach fuzz' but real hair growth on both vertex and anterior mid-scalp area. Propecia must be continued to maintain any beneficial results. If you cease treatment, any hair you have gained is likely to be lost within 12 months.
Before taking Propecia, tell your doctor if you have ever had an allergic reaction to this medication, or to a similar medicine called dutasteride (Avodart). Propecia should never be taken by women or a children. Finasteride can be absorbed through the skin, and women or children should not be permitted to handle Propecia tablets. Propecia tablets are coated and will prevent contact with the active ingredient during normal handling, provided that the tablets are not broken or crushed. If a woman accidentally comes into contact with this medication from a broken or crushed tablet, wash the area with soap and water right away. If you are scheduled to have a lab test for prostate cancer, tell your prescriber or health care professional that you are taking finasteride.
Studies have suggested that than 2% of men taking Propecia xperience certain side effects. These include: decreased libido (desire for sex), difficulty achieving an erection or decrease amount of semen.