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"Discount pet drugs—no prescription required" may appeal to pet owners surfing the Web, but FDA experts say it can be risky to buy drugs online from sites that tout this message and others like it.
Some of the Internet sites that sell pet drugs represent legitimate, reputable pharmacies, says Martine Hartogensis, D.V.M., deputy director of the Office of Surveillance and Compliance in FDA's Center for Veterinary Medicine (CVM). But others are fronts for unscrupulous businesses operating against the law.
FDA has found companies that sell unapproved pet drugs and counterfeit pet products, make fraudulent claims, dispense prescription drugs without requiring a prescription, and sell expired drugs.
Pet owners who purchase drugs from these companies may think they are saving money, says Hartogensis, but in reality, they may be short-changing their pet's health and putting its life at risk.
CVM regulates the manufacture and distribution of animal drugs, while individual state pharmacy boards regulate the dispensing of prescription veterinary products.
Some foreign Internet pharmacies advertise that veterinary prescription drugs are available to U.S. citizens without a prescription. But, says Hartogensis, "There is a risk of the drugs not being FDA-approved."
A foreign or domestic pharmacy may claim that one of its veterinarians on staff will "evaluate" the pet after looking over a form filled out by the pet owner, and then prescribe the drug. "A veterinarian should physically examine an animal prior to making a diagnosis to determine the appropriate therapy," says Hartogensis.
CVM is especially concerned that pet owners are going online to buy two types of commonly used prescription veterinary drugs—nonsteroidal anti-inflammatory drugs (NSAIDs) and heartworm preventives.
"Both drugs can be dangerous if there is no professional involvement," says Hartogensis. "It's not generally a concern if the owner uses a legitimate online pharmacy and mails in a prescription from their veterinarian, who is monitoring the animal. But if there is no veterinarian-client-patient relationship, it's a dangerous practice."
Veterinarians often prescribe NSAIDs to relieve pain in dogs. NSAIDs should not be purchased on the Internet without a veterinarian's involvement because
Heartworm disease is a potentially fatal condition transmitted by the bite of a mosquito that is carrying infected larvae of the heartworm parasite. Dogs, cats, and ferrets can get heartworm. Heartworm preventives, given daily, monthly, or semiannually, depending on the product, kill the larvae before they become adult worms.
The American Heartworm Society recommends
"Testing is important even in dogs regularly treated with heartworm preventive products due to the occasional reports of product ineffectiveness," says Hartogensis. An Internet pharmacy veterinarian cannot draw blood from the animal to perform the test. If the test isn't done, a pet owner could be giving heartworm preventives to a dog that has heartworms, potentially leading to severe reactions.
This article appears on FDA's Consumer Health Information Web page6, which features the latest on all FDA-regulated products.
Updated: March 11, 2010
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