Lotus: 

Iif im reading this correctly... the pathway is

Estrogen pathway

HSD3B1 >HSD17B1 >CYP27B1&CYP24 >CYP1A1(!!!!) >CYP1A2 >CYP17A1 >CYP1B1 >COMT(catechol-O-methyltransferase) >UGT1A1(uridine diphospho-glucuronosyltransferase) >SULT1A1&SULT1E1(sulfotransferases) >ESR1&ESR2

and Cimetidine Inhibits(how much btw, <100%?) CYP1A2, wouldnt that mean it is STOPPING growth?? 
Stopping the CYP1A2(estrogen link), would stop E2 from being processed? or am i misreading this?

NOTE: I am prescribed CIMETIDINE() - IF its going to inhibit Breast growth or feminisation, i need to stop it now...