
Keywords: Lidocaine hydrochloride (PubChem CID: 6314); Sumatriptan succinate (PubChem CID: 59772); Acetaminophen (PubChem CID: 1983); Porcine esophageal epithelium; Iontophoresis; Isoelectric point; Electroosmotic flow; Permselectivity; Lidocaine hydrochloride; Sum