I am also an identical twin; of csuore, both my identical twin and myself have MPB. I'd like to keep whatever hair I have left and, if possible, regrow some. I tried to get my doctor to prescribe Avodart, but she does not want to write prescriptions for off-label use. She wants me to try Propecia instead, but given what I've seen on this site, I'd rather use Avodart.