EXPAREL is a non-opioid pain medication developed by Heron Therapeutics for patients recovering from surgery. It uses bupivacaine and a proprietary DepoFoam system to slowly release the active ingredient over time to control pain without opioids. Given the opioid crisis and issues with opioid use after surgery like nausea, vomiting, constipation and addiction, there has been significant work on developing alternatives like EXPAREL to address postoperative pain without opioids and improve recovery outcomes.