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# antihistamine

noun (an antihistamine, antihistamines); adjective (antihistamine)

«antihistamine» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. A medicine that calms allergic reactions such as sneezing, itchy eyes, rashes and hay fever. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/antihistamine/#m1)
2. (science) It works by blocking histamine, a chemical the body releases when it reacts to things like pollen, pet hair or insect bites. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/antihistamine/#m2)

### In the lessons

In health lessons, antihistamines help with hay fever and mild allergies. Some make you sleepy. For a severe allergy (anaphylaxis) an antihistamine is not enough: people need an adrenaline pen and an ambulance. Phrases: «take an antihistamine», «antihistamine cream».

### Examples

- I take an antihistamine in summer for my hay fever. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/antihistamine/#x1)
- The nurse put antihistamine cream on the bee sting. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/antihistamine/#x2)
- Some antihistamines make you drowsy. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/antihistamine/#x3)
- My dog allergy is better when I take antihistamines. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/antihistamine/#x4)
- For a serious allergy, call an ambulance; an antihistamine is not enough. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/antihistamine/#x5)
- The pharmacist gave Mum an antihistamine syrup for me. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/antihistamine/#x6)

### Note

anti + histamine. Say «an-tee-HISS-tuh-meen». Countable. Only take medicines with a trusted adult or a doctor's advice.

## On Mova

- [Trees and pragmatics of «antihistamine» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/antihistamine/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«antihistamine» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/antihistamine.html) on Mova free.