My dose of opiates usually is about 90-120mg of oxycodone daily, and i have been taking opiates like this for the past 2 years+..it has been 2 days since my last dose and a buddy of mine gave me one suboxone 8mg pill my question is how much of this pill should i take? i was thinking to start with 2mg? i have heard of people throwing up a lot when taking suboxone also i am on adderall and phentermine and xanax..thanks guys any other info would help as well. also how long after its fully dissolved under my tongue should i begin to feel it? this is my second time taking it since maybe a year ago