At Chewy's pet pharmacy, you can take care of all your pet's medical needs at the click of a mouse. Here you can find prescription flea and tick medicine, pet antibiotics, and lots more. If you've been searching for antihistamine prescription health conditions, look no further. Among the wide selection we carry, these are some great products to try: Diphenhydramine HCl (Generic) Capsules and Temaril-P Tablets for Dogs. For your pet's well-being, check out Chewy's pet pharmacy and if you have any questions be sure to reach out to our customer service available 24/7. For all your pet needs including antihistamine prescription health conditions, Chewy has you covered! We're here for you.