Over-the-counter sales have tanked for the overdose reversal drug naloxone , likely due to its high price, a new study says. Naloxone (Narcan) is a nasal spray that rapidly reverses an overdose by blocking opioid receptors in the body. It has been a key weapon in fighting America's opioid drug crisis. To that end, regulators in September 2023 made naloxone available without a prescription, hoping to get the medication into more hands and potentially save more lives. Sales peaked during the