DHT is a potent agonist of the AR, and is in fact the most potent known endogenous ligand of the receptor. It has an affinity (K d ) of to nM for the human AR, which is about 2- to 3-fold higher than that of testosterone (K d = to nM)  and 15–30 times higher than that of adrenal androgens .  In addition, the dissociation rate of DHT from the AR is 5-fold slower than that of testosterone.  The EC 50 of DHT for activation of the AR is nM, which is about 5-fold stronger than that of testosterone (EC 50 = nM).  In bioassays , DHT has been found to be - to 10-fold more potent than testosterone. 
Contraception is the foremost reason for Femilon to be used worldwide. With class leading efficacy as evident from its low failure rate of 1 to 2 per 100 women per year, its success is solely dependent on user consistency.
Femilon Tablet For Irregular Periods:
Combination hormone pills like Femilon tablet can be used to regulate abnormal menstrual cycles. Femilon finds itself used in a wide variety of sub entities of dysfunctional uterine bleeding.
Femilon For Ovarian Cyst:
Androgen excess disorders in women range from hirsutism and seborrhea to polycystic ovaries, Insulin resistance and Acne vulgaris (pimples). Femilon controls hyper androgenic states very efficiently by ethinyl estradiol's ability to raise SHBG as well as desogestrel's inherent anti androgenic activity.
Femilon For PCOS:
Femilon contraceptive pill offers several benefits in various gynecologic disorders. These include prevention of ectopic pregnancy, control of uterine fibroids, reduction in pelvic inflammatory disease, settling endometriosis, reduction in Iron deficiency anemia, benign breast disorders, and functional ovarian cysts (PCOS).
Premenstrual Syndrome is characterized by severe cyclic symptoms and signs around the time of menses. Femilon ameliorates and over time produces less painful and lighter periods in these women.
Other Applications Of Femilon:
Protection against various cancers is now an established fact with the use of combined contraceptive pills. Ovarian and Endometrial (uterine lining) cancers benefit best. With Pill usage from six months to a year even, reduction from anywhere between 40 to 50% in these cancers is noted. The highlight being this benefit extends from 10 to 15 years after discontinuing Femilon.