KnowraPromethazineLinked fromLinked fromThe 5 pages that link to Promethazine, each with the reason it gives.All 5Broader topic 1Compared with 4OndansetronCompared with: Its sedation and receptor actions differ from ondansetron's selective 5-HT3 blockade.ScopolamineCompared with: It can address similar symptoms but often causes substantial sedation.MetoclopramideCompared with: Its principal antiemetic action differs from metoclopramide’s dopamine blockade and motility effects.CyclizineCompared with: It is another antihistamine option for nausea, but has a different adverse-effect profile.