title: Preparation and evaluation in vitro of polylactic acid microspheres containing local anesthetics.
mesh_terms: D000779:Anesthetics, Local / Q000008:administration & dosage*; D003692:Delayed-Action Preparations; D007773:Lactates; D019344:Lactic Acid; D008863:Microspheres; D011091:Polyesters; D011108:Polymers
chemical_list: D000779:Anesthetics, Local; D003692:Delayed-Action Preparations; D007773:Lactates; D011091:Polyesters; D011108:Polymers; D019344:Lactic Acid; C033616:poly(lactide)