So I was wondering how much to use when IV'ing Opanas. I have the 15mg ER old formula and have been snorting it almost daily for that past 2 weeks. First starting off with only a quarter of it to get high but now my tolerance has brought me up to snorting the whole pill in 5 minutes to get high. I haven't had much experience with IV'ing so was wondering how much to start off with.
