antihistaminic การใช้

It acts as an antihistaminic and sympathomimetic, reducing swelling, inflammation and mucosal secretions.
It therefore does not require concomitant use of antihistaminic compounds to block the actions of histamine at other histamine receptor types.
It is used as a neuroleptic, anxiolytic and antihistaminic in doses between 12.5 and 75 mg a day.
The cognitive complications likely result from the antihistaminic effects of cinnarizine, while the motor effects are a product of the antidopaminergic properties.
To increase therapeutic activity trihexyphenidyl is often given concomitantly with levodopa, other antimuscarinic or antihistaminic ( e . g . diphenhydramine ) agents.