noun🔗ShareAntihistaminikumA drug or substance that counteracts the effects of a histamine. Commonly used to alleviate the symptoms of hay fever and other allergies."My sister took an antihistamine to relieve her itchy eyes and runny nose from the pollen in the air. "Meine Schwester nahm ein Antihistaminikum, um ihre juckenden Augen und ihre laufende Nase durch den Pollen in der Luft zu lindern.medicinesubstancediseaseChat with AIVocabulary GamePractice Reading