The purpose of the registry, led by Charles Pollack, MD, of the University of Pennsylvania Health System, is to evaluate patients' experience using the nasal spray to alleviate pain associated with medical problems that cause them to seek emergency care. The study will compare patient feedback on the effectiveness and safety of Sprix to that of patients prescribed oral narcotics.

"Moderate to moderately severe pain is one of the most common reasons patients seek care in emergency departments, but emergency department clinicians often do not provide adequate treatment of pain because of ingrained prescribing habits and concerns about the appropriate use of narcotic analgesics," said Dr. Pollack. "One of the goals of our study is to understand the overall impact of acute pain and its different treatments on patients after they leave the emergency department, including patient satisfaction, quality of life, and back-to-work/normal activities outcomes."

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