Emesis and hiccough; treatment with chlorpromazine.

Thorazine was very effective in the control of vomiting, regardless of cause, in 20 cases in which it was used. It stopped hiccough in five of seven patients treated and partially controlled it in the other two. The drug was more effective when given intramuscularly than orally. Use of the drug intravenously was observed in one case; shock occurred soon after injection.