For your pet's well-being, Chewy pet pharmacy is there for all your pet's prescription needs. Whether you are looking for prescription flea and tick medicine or other pet pharmacys, Chewy has you covered. If you've been searching for antihistamine prescription allergy relief, look no further. Among the wide selection we carry, these are some great products to try: Chlorpheniramine Maleate (Generic) Tablets and Cyproheptadine HCl (Generic) Tablets. Pick up all your pet's prescriptions like pet ear and eye meds and prescription allergy medication easily at the click of a mouse. Plus, get FREE 1-2 shipping on all orders over $49 on Chewy.com! For all your pet needs including antihistamine prescription allergy relief, Chewy has you covered! We're here for you.