Definition of hyoscine in English:


Pronunciation /ˈhīəˌsēn/ /ˈhaɪəˌsin/


  • A poisonous plant alkaloid used as an antiemetic in motion sickness and as a preoperative medication for examination of the eye.

    Also called scopolamine

    ‘There are also painkilling tablets available that contain the drug, hyoscine (eg Feminax), that may help prevent the muscle contractions.’
    • ‘Valid data are needed on old molecules that are still widely used in clinical practice (for example, haloperidol or hyoscine).’
    • ‘For more serious travel sickness your doctor may prescribe patches containing hyoscine (an anti-nausea drug).’
    • ‘Healy has a surprising affection for clinically attested, but unproven remedies, as insulin therapy, isoniazid, hyoscine, St. John's Wort, etc.’


Late 19th century from modern Latin hyoscyamus (see hyoscyamine) + -ine.