<p>Gonadotropins, including Choriogonadotropin Alpha&nbsp;PreFilled Syringe (choriogonado-tropin alfa injection), should only be used by physicians who are thoroughly familiar with&nbsp;infertility&nbsp;problems and their management. Like other hCG products, Choriogonadotropin Alpha&nbsp;PreFilled Syringe is a potent gonadotropic substance capable of causing OvarianHyperstimulation Syndrome (OHSS) in women with or without pulmonary or vascularcomplications. The risks of gonadoptropin treatment should be considered for women with risk factors of thromboembolic events such as prior medical or&nbsp;family history.&nbsp;Gonadotropin&nbsp;therapy requires a certain time commitment by physicians and supportive health professionals, and requires the availability of appropriate monitoring facilities. Safe and effective induction of&nbsp;ovulation&nbsp;and use of Choriogonadotropin Alpha&nbsp;PreFilled Syringe in women requires monitoring of ovarian response with serum&nbsp;estradiol&nbsp;and&nbsp;transvaginal ultrasound on a regular basis.</p>