Deerhound in a field of pink wildflowers.
24/7 access

Answers You Need to Keep Your Dog Safe

Trusted MDR1 guidance for dogs — backed by leading experts

MDR1Caddie™ gives you 24/7 access to expert guidance on MDR1-related drug safety.

A direct line to drug dosing information based on your pet’s MDR1 genotype from the leading experts

When you purchase WSU’s MDR1 genetic test, you and your veterinarian gain 24/7 access to MDR1Caddie™ — a direct line to expert guidance on MDR1-related drug safety. Dogs with the MDR1 mutation can react severely to common medications, making informed decisions critical for their health.

Testing positive for the MDR1 mutation can raise urgent questions: Is that flea and tick medication safe? What about heartworm preventatives or cancer treatments? MDR1Caddie™ provides trusted answers when every choice counts. Unlike other tests sold online, WSU’s MDR1 test is the only one designed for medical diagnosis and treatment — because incorrect results can lead to fatal reactions. With MDR1Caddie™, you also have trusted guidance for prescription and over-the-counter medications, and peace of mind knowing your pet’s safety comes first.

Dr. Katrina Mealey at her desk with her dog in the lap.

Dr. Mealey, the founding director of the Program in Individualized Medicine at WSU and recognized as a global expert in veterinary pharmacogenetics, also developed the first MDR1 genotyping tests for both dogs and cats.