Antiemetics in children receiving cancer chemotherapy: a double-blind prospective randomized study comparing metoclopramide with chlorpromazine.

This is the first prospective randomized study comparing commonly used antiemetics in children receiving cancer chemotherapy. We compared metoclopramide (MCP) with chlorpromazine (CLP), both administered in conventional doses, in 50 cancer patients aged 6 to 18 years who were receiving emetic chemotherapy. CLP proved significantly better than MCP in reducing both the frequency of vomiting (P less than .05) and the duration of nausea and vomiting (P less than .025). Extrapyramidal reactions (EPRs) were more common in MCP-treated patients. We conclude that, in the standard doses used, CLP is a better overall antiemetic than MCP for children receiving intensive chemotherapy. However, further prospective pediatric studies of antiemetic combinations are needed.