Shares of Heron Therapeutics Inc. gained 3.0% in trading on Thursday after the company said the Food and Drug Administration had approved its non-opioid anesthetic for use in some surgical patients. The drug, Zynrelef, is expected to become available to hospitals in July. Heron’s stock is down 16.2% for the year, while the S&P 500 is up 8.1%.

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