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Propecia, also known as Finasteride is a variant of enzyme inhibitor. The drug is for men only. This medication is used to treat hair loss of men. Hair loss of men is a common phenomenon in which the density of hair becomes thin day by day and eventually creates bald area on head. Propecia is also effective against benign prostatic hyperplasia where prostate size increases and creates obstacle in the way of urination.

Finasteride works against an enzyme known as 5-α reductase that alters testosterone to dihydrotestosterone (DHT). As a result the serum level of DHT becomes lower. DHT influences loss of hair and prostate enlargement. As the medicine blocks the conversion process of testosterone to DHT, loss of hair is thus prevented consequently. After using the medication for three months, hair growth should be significant to get noticed. After one year of discontinuation of the medication, however, hair loss may again be started. Same condition occurred with prostatic hyperplasia; size is decreased upon medication but after stopping it will again start to increase.

There are some probable side effects of this medicine including breathing problem, acne on face, lips tongue or throat, lumps on chest, chest pain, nipple discharge, stomach pain, back pain, erectile dysfunction, diarrhea, drowsiness and headache. In some cases, symptoms of male breast cancer can be developed. Nevertheless, these side effects should not last for long.

It is not necessary to eat while you will take Propecia. Sometimes it is better to not eat any food when you will take the medicine. When you will continue this medicine, you should not try to get up too quickly from bed or chair as your body may get imbalanced easily and you may fall. Take the medicine just as your doctor prescribes. Never go for larger quantities of medication or a period longer than prescribed.