Largactil : anaesthesia, psychiatry, nausea and vomiting, pain... : Phenergan promethazine, a phenothiazine derivative unique in its action : pruritis motion sickness, insomnia, drug sensitization, pre-operative tension, Parkinsonism / Poulenc Limited.

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Largactil : anaesthesia, psychiatry, nausea and vomiting, pain... : Phenergan promethazine, a phenothiazine derivative unique in its action : pruritis motion sickness, insomnia, drug sensitization, pre-operative tension, Parkinsonism / Poulenc Limited. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.