noun
antihistamine
an-tee-HIHS-tuh-meen
noun
1
A drug that blocks the effects of histamine, commonly used to relieve allergy symptoms like sneezing or itching.
"He takes an antihistamine every morning during hay fever season."
"The antihistamine made her drowsy, so she avoided driving that afternoon."
How to Use Antihistamine
Learner’s notesIn plain EnglishA medicine that stops allergy symptoms by blocking histamine.
Common mistake
Some antihistamines cause drowsiness while newer ones don't — check the label before driving or operating machinery.
Word Forms
antihistamines plural
Study it as flashcards or scroll it in Flow — saved to your collection.
Test yourself on “antihistamine”
A quick quiz — meaning, synonyms & usage
→
Fill the Gap
Can you complete this real example?
He takes an _____ every morning during hay fever season.
Etymology
Built from anti- ("against") and histamine, the chemical the body releases during an allergic reaction.