Finasteride is marketed by the popular brand names ‘Propecia’, ‘Proscar’, Finax’ for preventing hair loss and promoting the growth of new hair in men only and not recommended for using in females and pediatric population.Finasteride is a 5-AR- II inhibitor and inhibits the conversion of testosterone into DHT. The effect of its treatment is seen in about three months or may be more. The treatment should be continued for sustained hair growth or else the reversal of hair growth occurs within a year.
Dose: Its recommended dose is 1mg per day and should be taken at the same time each day either before or after meals.
Precautions: Finasteride is absorbed through skin hence the tablets are coated so that the contact with skin is avoided, If the tablets are broken accidentally then the exposed area should be washed immediately with soap and water. If a dose is missed do not try to make up the missed dose by doubling the dose. Never take an extra dose as it will not have any extra effect. Pregnant women should keep away from the tablets as its exposure may lead to serious birth defects.
Inform your doctor about the drugs you are taking to know about any drug-drug interaction.
Side Effects: The drug has several side effects such as impotence, libido disorders, ejaculation, enlargement of breasts and hypersensitivity reactions such as rashes, urticaria etc.The incidence of these side effects is very low. The sexual side effects is temporary but uncommonly may persist even after discontinuation of treatment. The warning labels of the drug has been expanded by FDA in 2012.
Currently Finasteride topical solutions in the dose range of 0.1% to 0.25% are being used alone or in combination for hair loss treatment. The topical Finasteride also helps in preventing the side effects occurring due to systemic exposure of Finasteride.