suboxone or subutex whats the best doesage to completely bloke any opiate and can it make you really ill?

on suboxone 8mg does it bloke any opiate?
taking suboxone does they make your eyes like pinpoint?
can i do a water test while on 8mg suboxone and will it be neg?
if you are on 8mg suboxone and you take an opiate i.e heroin would it make you really ill?

: http://alcoholdrugstreatment.info/suboxone-or-subutex-whats-the-best-doesage-to-completely-bloke-any-opiate-and-can-it-make-you-really-ill