Saved me about 3yrs ago when I took Rx Oxycodene 30mg and Rx Lorezapam 2mg, too close together.
Most opioid deaths are poly substance deaths. It’s on your link one of the graphs showing benzos and opioids with ODs.
In fact, it’s the poly substance use that’s the big problem. Pharmacists should really be more vigilant here because they usually have the data from all prescribers at the time they dispense.
Alcohol, benzos and opioids together are more dangerous that high dose opioids alone.