I've Been Trying To W/d From Alcohlism...55y/o W F/m....Dctr.prescibed NATREXONE..I

i've been trying to w/d from alcohlism...55y/o w f/m....Dctr.prescibed NATREXONE..I HAD NADDA CLUE THIS DRUG CONTAINED AMPHETAMINE..going online, checking infor, I'd found out the drug can be taken i.v. or/oral..what do u suggest??I live w/ a nurse and her husband..all i wany is to remain sober,,,if i make it thru the end of day i'll b 17 days...but i'm miserable ..lorazepam is the only drug which wins this UGLY DEMOS INSIDE..THANKS 4/YR X