Reactine Brief product information from Pfizer Canada. http://www.pfizer.ca/our%20products/consumer%20health/allergy/reactine/allergy%20sinus/default.asp?s=1
Zyrtec Cetirizine HCl and pseudoephedrine HCl. http://www.zyrtec.com/
Zyrtec Full prescribing information from RxList. http://www.rxlist.com/cgi/generic/cetiriz.htm
