The manufacturer has an assistance program. Google Suboxone assistance or try needymeds.com...
It depends where you are I think.Im in the uk and doctors are free here and if you get put on suboxone its free unless youre employed.If youre employed you only pay £5($8) for the scripit once a month.Surely in the U.S.A,if thats where you are,they must do something like that as well for people who cant afford it.Good luck.
How is he getting it now?