Assertion: promethazine | /r/CapableOf | act as antihistamine
Facets:
Source sentences:
text: Promethazine acts as an antihistamine.
text: Promethazine is a phenothiazine that works like an antihistamine.
text: Promethazine also acts as an antihistamine too, and it if often used in that way, shape, or form.