A 4-year-old Yorkshire terrier was presented for an esophageal foreign body. After removal of the foreign body, clinical signs of gagging, regurgitation, and vomiting continued unabated for >6 weeks. The dog had enlarged submandibular salivary glands that were histologically normal. Treatment with phenobarbital resulted in a rapid and dramatic resolution of clinical signs. After 3 months, the dog was weaned of phenobarbital and was free of any signs of disease 6 months later.

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