Female Hair Transplant and Shock Loss

I am a female planning to get a hair tranpslant and have heard that the trauma of the surgery can cause other hair to fall out. I was wondering if being on Propecia would help keep the hairs from shedding. And if so, do you need to be on Propecia for a certain number of months before it works (i.e. keeps hair from falling out)? Thanks!

Propecia (finasteride) is contraindicated in women who may become pregnant and inefficient in post-menopausal women. It probably will have no impact on pre-menopausal women. Although studies have shown significant reduction in the rate of shock loss in men who are on Propecia, it has not been studied for in women for that purpose and in theory should not work. Hair loss shock is not common in women after transplantation.