Is Motrin safe for squirrels?

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I have used Motrin to help limit pain and also as an anti-inflammatory with squirrels. I know many other rehabbers who use it and have a long track record of using it without apparent issues. At the Gathering it was brought up that the WBM says “Do NOT use any form of Ibuprofen or Napraxen in animals”.

Plums Vet Drug Handbook says “Toxic to dogs, cats, ferrets; not recommended for vet use. Primary issues include GI ulceration and possible renal, liver failure with neuorological signs including seizures”. No specific mention about rodents/squirrels.

So, are we simply ahead of the curve regarding Ibuprofen and squirrels or could we be potentially causing harm?

I figured this must have come up before but I wanted to double check again...