Assertion: oral antihistamine | /r/CapableOf | affect h1 receptors
Facets:
value: in the central nervous system
type: LOCATION
Source sentences:
text: First-generation First-generation oral antihistamines, including diphenhydramine (Benadryl) and chlorpheniramine (Chlor-Trimeton), easily cross the blood-brain barrier and affect H1 receptors in the central nervous system (CNS).