AdvertisementA Lifesaving Medicine That My Patient Didn't Get In TimeApril 10, 2015Leana WenfacebookEmailA kit with naloxone, also known by its brand name Narcan, is displayed at the South Jersey AIDS Alliance in Atlantic City. Naloxone counters an overdose with heroin or certain prescription painkillers by blocking the receptors these opioids bind to in the brain. (AP)