Doctor insights on:
Antihistamine For Horses
Shortness of breath when running next to a horse or when riding one, antihistamines do not work, i get to the point of dizzy and feeling faint, cough?
Older ones do: First generation antihistamines (benadryl, clor-pheramine, atarax) cross the blood brain barrier and cause lethargy. Second generation (allegra, claritin, zyrtec, xyzal, (levocetirizine) clarinex) cause the blood brain barrier at a much lesser amount and more targeted to the h1 receptor. ...Read more