Menotropins contains follicle stimulating hormone (FSH) and luteinizing hormone (LH) purified from the urine of postmenopausal women. It is used as a fertility medication that is injected either subcutaneously or intramuscularly. It is composed of LH with 2 subunits, alpha = 92 residues, beta = 121 residues and FSH with 2 subunits, alpha = 92 residues, beta=111 residues.