One group will receive the standard bowel preparation, which consists of eating no solid foods after 7 p.m. the evening prior to the capsule endoscopy test and being able to consume clear liquids up to 4 hours prior to the capsule endoscopy test

The other group will receive the combination bowel preparation, which consists of taking the standard bowel preparation plus:

1. drinking 2-liters (8 cups) of polyethylene glycol starting at 7 p.m. the night prior to the capsule endoscopy test;
2. drinking a teaspoon of simethicone 20 minutes prior to the capsule endoscopy test;
3. drinking a teaspoon of metoclopramide 20 minutes prior to the capsule endoscopy test;
4. lying on your right side for 30 minutes following the swallowing of the capsule endoscope.

combination bowel preparation, which consists of:

1. drinking 2-liters (8 cups) of polyethylene glycol starting at 7 p.m. the night prior to the capsule endoscopy test;
2. drinking a teaspoon of simethicone 20 minutes prior to the capsule endoscopy test;
3. drinking a teaspoon of metoclopramide 20 minutes prior to the capsule endoscopy test;
4. lying on your right side for 30 minutes following the swallowing of the capsule endoscope.

The primary endpoints of small bowel visualization quality, diagnostic yield, and completion rate will be compared between groups using Pearson's chi-square test.

secondary endpoints of safety outcomes and patient satisfaction with Pearson's chi-square test.

A group comparison for the secondary outcome of gastric transit time will be done using a two-sample t-test or Wilcoxon rank-sum test, as appropriate.