I have not been able to obtain any info for if NARCAN works on reversing opioid OD if there are other drugs present.
I haven't;t RTFT but these ignorant 'reckons' piss me off too much and I end up posting too soon. You don't know enough to have an opinion. Everyone is entitled to one but ignorance is killing people.
Firstly on the above. I am naloxone trained. They won't reverse benzos or alcohol so if that's the main thing killing the person, they are dead. Unless you can get an ambulance to them very quickly. Naloxone also needs to be used carefully. You can inject or nasally administer it, the person can seem fine, but the dose they took may mean they fall back into OD if they don't get more doses/medical care.
On harm reduction and treatment. Harm reduction has been fucked up in Canada. Canada has a habit of doing something that another country did excellently, and doing it with less money, missing pieces, poorly administered and making things worse. It's like antibiotics; for it to work, you have to do it properly.
You need:
Decriminalisation of all drugs
Properly funded treatment and housing
Properly funded healthcare
Properly funded MH care
Safe supply
Safe use
Supportive second stage housing
'Dry' accommodation which is properly dry, not damp
Last, but completely ignored, proper judicial and support systems that deal with the actual cause of drug addiction, male violence. I worked in treatment and drug and alcohol services and most of the people i worked with had adverse childhood experiences that stemmed from DV, CSA and PTSD, almost always from male violence. Stop that, you stop addiction.