The purpose of the present invention is to provide a local anesthetic agent-containing composition that is (1) fast-acting after administration without being made to be sustained release and that has a lasting drug efficacy, and/or that has (2) good storage stability. Provided is an acidic emulsion composition containing a local anesthetic agent and a glyceride in which a fatty acid having 6 to 12 carbon atoms is ester bonded to a glycerin.