promethazine

Definitions of promethazine
  1. noun
    antihistamine (trade name Phenergan) used to treat allergies; also an antiemetic used to treat motion sickness
    synonyms: Phenergan
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    type of:
    antiemetic, antiemetic drug
    a drug that prevents or alleviates nausea and vomiting
    antihistamine
    a medicine used to treat allergies and hypersensitive reactions and colds; works by counteracting the effects of histamine on a receptor site
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