SWIM is a heavy heroin user of east coast heroin. SWIM uses about a gram a day 0.3 grams per shot 3 times a day. Each shot gives SWIM pins and needles and a good nod. SWIM has come across a full bottle of Morphine Sulfate Injectable 300mg/20ml (15mg/ml). SWIM wonders what would be the correct dose to mimic the same effects he gets from the heroin he uses. If anyone could help that would be awesome! Thanks so much!