Medications to Discontinue 48–72 h Before Gastric Emptying Scintigraphy (1,3)
| Class of agent | Generic medication name |
| Prokinetics | Metoclopramide |
| Cisapride | |
| Domperidone | |
| Erythromycin | |
| Anticholinergics/antispasmodics | Dicyclomine |
| Donnatal | |
| Hyoscyamine | |
| Glycopyrrolate | |
| Opiate analgesics | Meperidine |
| Codeine | |
| Morphine, oxycodone | |
| Antidepressants | |
| Calcium channel blockers | |
| Gastric acid suppressants/aluminum-containing antacids | |
| Laxatives* | |
| Agents that may affect gastric emptying | Atropine |
| Nifedipine progesterone | |
| Octreotide | |
| Theophylline | |
| Benzodiazepine phenylamine |
↵* Discontinue for 24 h beforehand.