<prompt> Which of the following drugs acts on motilin receptors-ErythromycinTetracyclineNorfloxacinChloramphenicol  <response>: Ans. is a i.e., Erythromycin o Erythromycin stimulates motilin receptors in the GIT-thereby, induces gastric contractions, hastens gastric emptying and promotes intestinal motility. 