Hormone replacement therapy is usually based on two or three types of medicines which are used to increase hormone levels.

HRT provides a short term relieve to women from symptoms of menopausal which are usually hot flashes, fat redistribution and irregular menstruation etc. Women can take this treatment usually for two to three years but younger women who have premature ovarian failure can take it for many years. HRT can be provided to women through capsules, tablets, injections, creams, troches,

 

vaginal rings, IUDs and through gels as well. Estrogens or progesterone hormones are provided through medication but chemical mixtures like progestin can also be provided.

The mixtures of these hormones like estrogens and progesterone are taken from the urine of pregnant horses. Usually gels and skin patches are made from it. These drugs are usually provided through transdermal patch rather than pill. The disadvantage of this way is that they enter the bloodstream directly without the process of cleaning of liver so they are risky for heart patients.

 

HRT is however, most important with the symptoms of menopause and even bone loss. It has pretty good benefits for women but the bounded risks and depending situations for individuals patients because of many contraindications, it can be risky to use. So, each patient must look for doctor's suggestion before having any HRT sort of therapy.

Hormone replacement therapy is also used with some other sort of medications and surgical procedures for transgender people and they can replace the hormone naturally occurring in their bodies with those of other sex. The main purpose of this therapy is to cause secondary sex characteristics of their desired gender. You can read an about these kind of HRT to know how it acts scientifically through e-books.