HomeMedicationsHydroxychloroquine
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Toxic: keep away from dogs

DogSafe severity score
8/10
⚕️This page is pending review by a licensed veterinarian.
Check Hydroxychloroquine for your dog

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Why Hydroxychloroquine is dangerous

Hydroxychloroquine overdose may cause gastrointestinal, neurologic, blood-pressure, and dangerous heart-rhythm effects. Veterinary exposure information is limited.

Signs to watch for

Vomiting, weakness, agitation, tremors, abnormal heart rhythm, low blood pressure, seizures, collapse

What to do next

Keep the bottle or packaging, count what may be missing, and call for case-specific guidance even if your dog looks normal.

🚨Step-by-step: what to do in the first 10 minutes →
Animal poison control

FAQ

How much Hydroxychloroquine is dangerous?

Any unplanned ingestion should be treated as urgent because tablet strength and a dog's body weight can produce a large relative exposure.

Can I treat this at home?

Do not induce vomiting or give food, charcoal, or another medicine unless a veterinarian or poison specialist directs you.

When should I call the vet?

Call your veterinarian or an animal poison control center now with the product strength, amount missing, time, and your dog's weight.

Sources
  • FDA drug labeling / ASPCA Animal Poison Control Center guidance
Compiled from veterinary poison-control and medical reference sources, including the ASPCA Animal Poison Control Center, the Pet Poison Helpline, and the Merck Veterinary Manual. This is general educational information, not a diagnosis or a substitute for examination by your veterinarian. DogSafe's severity ratings are our own assessment, calculated from published guidance and your dog's weight. In an emergency, call ASPCA Animal Poison Control at 888-426-4435 or the Pet Poison Helpline at 855-764-7661.