All of the following statements are TRUE about second generation antihistaminic agents EXCEPT :
- These do not impair psychomotor performance
- These possess high anti–motion sickness activity
- These lack anticholinergic actions
- These may possess additional antiallergic mechanisms
Anti-motion sickness activity is related to anticholinergic property. This property is exhibited by first generation com-pounds whereas second generation antihistaminics lack this potential.