Changes in serum total amylase, pancreas-specific isoamylase and pancreatic polypeptide activities were measured in six dogs following multiple intramuscular injections of xylazine at 0.5 mg/kg of body weight. The activities of those analytes did not change over 24 hours of study.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1255173PMC

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