Cyanoacetamide is used in spectrofluorimetric methods to determine the activity of antihistamine H1 receptor antagonistic drugs such as ebastine , cetirizine dihydrochloride and fexofenadine hydrochloride .
Cyanoacetamide is used in antagonistic methods to determine the activity of antihistamine H1 receptor spectrofluorimetric drugs such as ebastine , cetirizine dihydrochloride and fexofenadine hydrochloride .