My dog ate antifreeze. How long until I see signs of poisoning?

Question

Hi i asked if a dog had ingested antifreeze could he show no signs, and the vet said it can take 12h for symptoms to show up. By the 12h mark signs would definetely show up? (Didn’t happen just asking because its something im very afraid of happening to my dog). Pet's info: Dog | Mixed Breed | Male | unneutered | 20 lbs

Linda G, MS, DVM · Accepted Answer

Hello. If a dangerous or toxic amount of antifreeze was consumed, stage 1 symptoms can show up as early as 30 minutes & include vomiting, ataxia, weakness or depression. Signs may subside in an hour or two before progressing to a swift decline in health 6-12 hours post ingestion. During this stage, you may see panting & a significant increase in thirst & also urination. Complete shutdown of the kidneys usually occurs around 72 - 96 hours post ingestion. So if you are seeing absolutely no signs at 12 hours, you are probably OK, but if there are ever any doubts, take your dog to your vet because bloodwork will be the best way to diagnose a suspicion rather than waiting to see if anything develops ( which may now be too late to treat ). Thanks for using Petco Pet Education Center, formerly Petcoach.

My dog ate antifreeze. How long until I see signs of poisoning?

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