Cocaine causes rare heart block in Chihuahua

Cocaine caused a Chihuahua's heart to block and nearly shut down, a rare effect veterinarians should be aware of.

Why it matters

  • Cocaine can cause dangerous heart issues in dogs
  • Vets should consider cocaine exposure in cases of unexplained heart block

By the numbers

  • 2-year-old, 5.5-kg male Chihuahua affected
  • Heart block resolved after treatment with atropine and epinephrine
  • Cocaine and metabolites found in urine

The big picture

  • Cocaine exposure in pets is rare but can be life-threatening
  • More research needed on cocaine's effects in dogs

What they're saying

  • Concern and surprise over a dog's cocaine exposure
  • Some question rarity of this effect given cocaine's known impacts

Caveats

  • Single case report; more research needed
  • Exact dose and route of cocaine exposure unknown

What’s next

  • Further studies on cocaine's effects on dogs' hearts could help vets treat similar cases