[joveian]

Another common way to die is to take heroin and benzos at the same time (both are respiratory depressants). This happens with the similar prescription painkillers as well.

There are some other combinations that can cause similar trouble too (alcohol plus benzos, alcohol plus opiods).

Accidental overdose can also happen after relapse, most easily if avoiding the substance rather than receiving medical addiction treatment. Or if taking combinations of drugs that combine to impair judgement.

[LorenPechtel]

Yup. A friend's girlfriend lost her daughter to alcohol plus benzos and she wasn't even a druggie.