Dose - ABG 30mg Morphine

[insidiousvertigo]

Hi, recently SWIM and SWIM's friend picked up some morphine pills...purple 30mg ABG. SWIM's friend bought five, and SWIM bought 2. Unfortunately, one of SWIM's fell out of his pocket in his car, and he cannot find the darn little pill.

SWIM's friend is a big fellow, let's say 240 lbs. If he were to take all five of his, 150mg, at once, would it be a lethal dose? He is not thinking of doing it as far as SWIM knows, but SWIM is worried that his friend my try this. Sorry if this question is stupid. SWIM's friend has taken a fair amount of opiates before, but never morhpine. In fact, last night, SWIM's friend took 10mg of Methadone, and 15mg of Hydrocodone/APAP, and didn't get overwhelmed or anything, just the normal euphoric warm body buzz. Thanks in advance for help with SWIM's question!