One of the limitations of the present study was
lack of data related to serum levels of the drug
and/or gastric emptying rates for comparison
between serum levels of metoclopramide and
gastric emptying rates. A future study with higher
sample size, to investigate the relationship
between serum level of metoclopramide and
studied variables, with assistance of a clinical
pharmacologist, can increase the quality and
preciseness of detected results in the current
study.