It's rated and L3 in 2006 Hale-Hope the following info helps.

                                                                            
 Follicle-stimulating hormone (FSH) is a glycoprotein gonadotropin secreted 
 by the anterior pituitary in response to gonadotropin-releasing hormone    
 (GnRH) from the hypothalamus.[1-3] FSH and Luteinizing hormone bind to     
 receptors in the testis and ovary and regulate gonadal function by         
 promoting sex steroid production and gametogenesis. In the female, FSH     
 induces growth of the graafian follicle in the ovary preparatory to the    
 release of the ovum. Approximately 15 ug is secreted daily by the          
 pituitary in normal individuals. Numerous forms of FSH are available and   
 are listed below, but all work similarly. FSH is a large molecular weight  
 peptide (34,000 daltons) and is very unlikely to enter milk or be orally   
 bioavailable to an infant. However, it is not known if the administration  
 of FSH, and the subsequent maternal changes in estrogen and progesterone,  
 would alter the production of milk. It is likely, since the onset of       
 pregnancy is commonly followed by a decrease in milk production in most    
 mothers. Urofollitropin (Metrodin, Fertinex) Urofollitropin is a           
 preparation of gonadotropin (FSH) extracted from the urine of              
 postmenopausal women. Follitropin Alpha (Gonal-F) and Follitropin Beta     
 (Follistim) Follitropin alpha and follitropin beta human FSH preparations  
 of recombinant DNA origin. Menotropins are combination products containing 
 both FSH and luteinizing hormone (LH). See Menotropins.                    
                                                                            



                                                                    
 Pediatric Concerns: None reported via milk. FSH is very unlikely   
 to penetrate milk, and it would not be orally bioavailable.        
 However, observe closely for reduced milk production.              
                                                                    





Ann J. Devine RN/IBCLC
Lactation Consultant/Newborn Nursery
Gundersen Lutheran
1900 South Avenue
LaCrosse, WI 54601
mail stop H05-004
608-775-6876

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