Co-ingestion of prescription opioids and other drugs among high school seniors: Results from a national study

Nearly 7 out of every 10 nonmedical users of prescription opioids reported co-ingestion of prescription opioids and other drugs in the past year. The findings indicate that the co-ingestion of prescription opioids and other drugs by high school seniors in the United States serves as a marker for substance abuse and represents a significant public health concern.