Question: is narcan the same as adrenaline?
Answer: No, unfortunately, the scene is a misrepresentation of opioid overdose response! Naloxone is never injected into the heart, only in a vein or muscle (or sprayed or squirted up the nose). In the movie, they use adrenaline (epinephrine), which is not at all effective in reversing an opioid overdose.