The price of gonafem varies from place to place: 5.5μg (75IU) per pill, ranging around 300 RMB; 22μg (300IU) per pill, around 1200 RMB; 33μg (450IU) per pill, around 1600-1800 RMB. Gonafem, also known as recombinant human follicle stimulating hormone, is mainly used in assisted reproductive technology for super ovulation to stimulate the development of multiple follicles. Gonafem is an imported drug, which is stable because it is highly pure and active, does not contain LH and urinary protein impurities, and has no product batch-to-batch differences. For now, there are three most commonly used dosage forms, lyophilized powder with a size of 5.5ug, and new pre-filled injection pens with 300IU and 450IU. This new pre-filled injection pen is very convenient for patients to use.