Naloxone is Safe
Naloxone is an antidote to opioid overdose. It temporarily reverses the effects and restores breathing.
It never hurts to give Naloxone.
Naloxone doesn’t work on overdoses from stimulants (“uppers”) and other kinds of drugs. These include cocaine, meth, crack, ecstasy, GHB and alcohol.
If somebody has taken a mix of drugs, naloxone will still help by blocking the opioids.