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Ask Dr. Michael Salkin Your Own Question
Dr. Michael Salkin
Dr. Michael Salkin, Veterinarian
Category: Dog
Satisfied Customers: 24423
Experience:  University of California at Davis graduate veterinarian with 44 years of experience
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Last night, my wife mistakenly gave our 20 lb dog 25mg of

Customer Question

Customer: Last night, my wife mistakenly gave our 20 lb dog 25mg of losartan potassium by mistake. My wife got my meds mixed up with the dog's. Should I take the dog to emergency? It happened 12 hours ago and the dog seems OK
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Submitted: 11 months ago.
Category: Dog
Expert:  Dr. Michael Salkin replied 11 months ago.

No, there's no need for an ER visit. The angiotensin-II receptor blockers such as losartan appear to be very well-tolerated by dogs. There's very limited experience in veterinary medicine; little date on efficacy, safety, adverse effects, etc. but we've dosed it at up to 0.5 mg/lb without harm. 25 mg in a 20lb dog would appear to be an overdose but not when we temper that fact by recognizing that dogs don't metabolize much losartan into an active metabolite. I see no need to treat your dog in any manner. Your dog should remain unaffected.

Please respond with further questions or concerns if you wish.

Expert:  Dr. Michael Salkin replied 11 months ago.
Hi,
I'm just following up on our conversation about your pet. How is everything going?
Dr. Michael Salkin