Assertion: promethazine | /r/HasProperty | h1 receptor blocking agent
Facets:
value: h1 receptor
type: OTHER
Source sentences:
text: Promethazine is an H1 receptor blocking agent.
text: Promethazine is an H1 receptor blocking agent.
text: Promethazine is an H1 receptor blocking agent.
text: Promethazine is an H1 receptor blocking agent.
text: Promethazine is an H1 receptor blocking agent.