title: Ultralong-acting local anesthetic agents.
mesh_terms: D000779:Anesthetics, Local / Q000494:pharmacology*; D000818:Animals; D006801:Humans; D013757:Tetraethylammonium Compounds / Q000494:pharmacology; D013997:Time Factors
chemical_list: D000779:Anesthetics, Local; D013757:Tetraethylammonium Compounds