Hello, metoclopramide may help with nausea and vomiting. This drug should not be given when there is suspicion for intestinal obstruction or gastrointestinal bleeding. Otherwise it shouldn t cause problems to a healthy individual. Gastrointestinal bleeding can be suspected when the vomitus is red or dark (coffee ground). Intestinal obstruction usually presents with abdominal distension, nausea, vomiting and inability to pass gas. I suppose none of the above disorders describe your partner and using one tablet of metoclopramide (10mg) may help. So in conclusion, your partner can try metoclopramide but please keep in mind that taking medications without a documented diagnosis poses some risks. The best thing for him would have been to visit a doctor for assessment. I hope I ve answered your question. Please let me know if you need further assistance. Kind Regards, Dr Panagiotis Zografakis, Internal Medicine Specialist