Does an opite blocker block alchohol too?

Opioid blockers, such as naloxone, are specifically designed to block the effects of opioids and do not have an effect on alcohol. Alcohol and opioids act on different receptors in the brain, so an opioid blocker will not interfere with alcohol's effects or intoxication. However, both substances can be dangerous when used together, and their combined effects can lead to increased risks.