What do you think might be a potential danger of taking an antihistamine?

Answer 1

https://www.google.com/search?source=hp&ei=cDSFXfTbAYaSsAXr7YCYDA&q=potential+danger+of+taking+an+antihistamine%3F+++0++0++3+++&oq=potential+danger+of+taking+an+antihistamine%3F+++0++0++3+++&gs_l=psy-ab.3..33i299l3j33i160l4.3946.3946..5104...0.0..0.163.163.0j1......0....2j1..gws-wiz.CD-z_Nnzw10&ved=0ahUKEwj004nbnODkAhUGCawKHes2AMMQ4dUDCAg&uact=5

Answer 2

Have you read the label on any of your Mom's antihistamine? Do that. I have a reaction that results in Vertigo (sometimes)...that is why mine says to take only once per day.

Antihistamine Side Effects

Drowsiness or sleepiness.
Dizziness.
Dry mouth, nose, or throat.
Increased appetite and weight gain.
Upset stomach.
Thickening of mucus.
Changes in vision.
Feeling nervous, excited, or irritable.