Clinical data
Trade names Bravelle, Fertinex
AHFS/Drugs.com Micromedex Detailed Consumer Information
  • US: X (Contraindicated)
Routes of
Subcutaneous, intramuscular
ATC code G03GA04 (WHO)
Legal status
Legal status
CAS Number 146479-72-3 YesY
PubChem (CID) 62819
DrugBank DB00094 N
KEGG D06400 YesY
ECHA InfoCard 100.212.030
Chemical and physical data
Formula C975H1513N267O304S26
Molar mass 22672.9 g/mol
 NYesY (what is this?)  (verify)

Urofollitropin is a purified form of follicle-stimulating hormone (FSH) that is manufactured by extraction from human urine and then purified[1] to remove various proteins and other substances. FSH is important in the development of follicles (eggs) produced by the ovaries. Given by subcutaneous injection, it is used in combination with human chorionic gonadotropin (hCG) to assist in ovulation and fertility.[2] It is also used with in vitro fertilization methods. The dosage is adjusted to each individual's response.[2]

The most common side effects are abdominal or pelvic pain, bloating, as well as redness, pain or swelling at the injection site. Follitropin is possibly associated with increased risk of endometrial carcinoma. It is not for use during pregnancy, as there is evidence for birth defects under follitropin treatment.[2]

Bravelle sold in the United States from March 2014 through October 2015 is subject to a recall and refund by its maker, Ferring Pharmaceuticals, because certain batches of the medicine had a lower strength than stated.[3]


  1. Van Wely, M.; Yding Andersen, C.; Bayram, N.; Van Der Veen, F. (2005). "Urofollitropin and ovulation induction". Treatments in endocrinology. 4 (3): 155–165. PMID 15898821.
  2. 1 2 3 Drugs.com: Urofollitropin (Intramuscular route, Subcutaneous route, Injection route)
  3. Enforcement Report - Week of October 21, 2015, Food and Drug Administration

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