| Early pregnancy | |
| Psychogenic vomiting | |
| Bulemia | |
| Pyloric channel ulcer | |
| Acute gastritis | |
| Gastric retention | |
| Viral gastroenteritis | |
| Acute gastroenteritis | |
| Myocardial infarction | |
| Peritonitis | |
| Acute obstruction | |
| Neurologic emergency | |
| Drug toxicity | |
| Cancer therapy | |
| Drug withdrawal |
| Timing of symptoms | |
| Relation to meals | |
| Associated symptoms | |
| Last menstrual period | |
| Comorbid conditions | |
| Epidemiologic data | |
| Drug history |
| Vital signs | |
| Skin | |
| HEENT | |
| Abdomen | |
| Neurologic |
| Rule out obstruction and peritonitis | |
| HCG | |
| Urinalysis | |
| Electrolytes, BUN, creatinine, glucose | |
| Transaminases, amylase | |
| EKG, head CT, upper GI &/or endoscopy |
| Phenothiazines | ||
| Compazine & Phenergan | ||
| Centrally acting non-phenothiazines | ||
| Tigan | ||
| Vestibular disturbances | ||
| Antivert | ||
| Motion sickness | ||
| Dramamine & Scopolamine | ||
| Pregnancy | ||
| No approved | ||
| Others | ||
| Marinol, Zofran, Kytril | ||