Yup that is how Amy Winehouse died an alcohol overdoes after rehab same amount that she used to drink daily. Lots of opioid users die in the same way from overdosing after thier tolerance has decreased from a period on non use, like Tom Petty. FYI Narcs fear drugs so badly they would rather see a user die then to allow them to continue to use drugs and enjoy life by allowing people a legal safe supply.If I were to ingest an 1/8 or less of the uncut coke I once did, experience from limited involvement 20+ years ago tells me it would likely literally kill me. The amazing resilience I had for cocaine 40 years ago is no more.
Knowing your own limitations is critical.