Assertion: antihistamine | /r/HasProperty | a group of drugs
Facets:
Source sentences:
text: Antihistamines are a group of drugs often used to treat allergy related conditions.
text: Antihistamines are a group of medicines which act by blocking the action of the chemical called histamine in the body.
text: Antihistamines are a group of medications that treat allergies by preventing the effects of histamine, which the body releases in response to certain stimuli 1.