Assertion: diphenhydramine | /r/HasProperty | a h1 receptor antagonist
Facets:
Source sentences:
text: Diphenhydramine is a H1 receptor antagonist, which works by blocking the effect of histamine in the body and results in relief from allergy symptoms.
text: Diphenhydramine is an H1 receptor antagonist, which means that when it is consumed, it blocks these receptors in the brain, stopping the effects of histamine in the body.