When Brenda Miller took her 6-year-old Golden Retriever, Cooper, for his routine annual checkup last spring, she expected a clean bill of health. Cooper was energetic, ate well, and had been on a strict monthly oral flea and tick chew recommended by her clinic for over two years.
"I paid over $120 every few months at the vet desk just to make sure I was giving him the absolute best," Brenda recalls. "I thought I was being a responsible pet parent."
Then came the phone call two days later. Cooper’s routine bloodwork showed unexpectedly elevated liver markers.
When Brenda asked her veterinarian what could be causing the internal stress, the vet paused before quietly mentioning that systemic, blood-borne parasiticide chews are processed through the internal organs—and that some dogs show sensitivity over time.
"My stomach completely dropped," Brenda says. "I was forcing Cooper to swallow an internal chemical every 30 days just to stop insects from biting him. I felt sick knowing I might be stressing his body to solve an outside problem."
Brenda’s experience isn't an isolated incident. Across the country, a growing movement of dog and cat owners is re-evaluating how they protect their pets from parasites—and questioning whether swallowing internal chemicals is truly necessary.