allergic rhinitis
"Hi .Chlorpheniramine is very effective drug.
I tried all the antihistamine and medicines like cetrizine , loratdine , fexofenafine etc. I spent a lot of money but just chlorpheniramine work for me and chlorpheniramine is very cheap!!A  few minutes   after taking this , I get complete relief and my allergies have gone especially eye allergy.
chlorpheniramine has  2 side effects for me:
1-make me very sleepy
2-need take this each 4 hours.at least 4 times in day."