am not a doctor myself but from what i know, the reason you increase the dose in first place is that your body build tolerance.
if a normal person were to take same dosage as a long time drug addict they would die in minutes
reasons for death of overdose:
someone went to rehab and lost their tolerance then went back to drugs with same dosage they used to take
someone missed a dosage and went through horrible withdrawal symptomps so when they finally got the pill they took too much
buying certain drug without knowing it is laced with a more powerfull one
am not a doctor myself but from what i know, the reason you increase the dose in first place is that your body build tolerance. if a normal person were to take same dosage as a long time drug addict they would die in minutes
reasons for death of overdose:
You missed one: Chasing a bigger high.
When people start dying of opioid overdoses, addicts tend to seek those suppliers out.