If I'm taking proscar the same time I am trying to make a child with my wife, can this cause problems in making her pregnant??

Taken from the Proscar "patient information" notice issued by Merck in July 2003:

"Women who are or may potentially be pregnant must not use PROSCAR. They should also not handle
crushed or broken tablets of PROSCAR.
If a woman who is pregnant with a male baby absorbs the active ingredient in PROSCAR after oral use or through the skin, it may cause the male baby to be born with abnormalities of the sex organs.
PROSCAR tablets are coated and will prevent contact with the active ingredient during normal
handling, provided that the tablets are not broken or crushed."

There is no suggestion that a male Proscar user could "contaminate" his female partner through his secretions (saliva, sperm...), however I would seek medical advice to confirm that there is absolutely no risk. Suggest you call one of the top docs' offices and/or post in the "physicians" section.

As Hairworthy printed-read the Merck P.I.
I dont know about Proscar- but propecia I was on for 5 yrs and took off about 2 months while having a baby--just to be on the safe side.