A generic version of a drug commonly used to treat separation anxiety in dogs was approved by the Food and Drug Administration this week.

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The FDA on Wednesday announced that clomipramine hydrochloride, the first generic version of the drug Clomicalm, was approved for dogs older than six months. Clomiclam was the first FDA-approved treatment for the condition in dogs, according to PetMD.

Separation anxiety in dogs describes a condition in which the animal exhibits certain behaviors – such as excessive barking, destructive acts (such as chewing furniture), urinating or defecating in the house and intense pacing, among others – when left alone.

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The condition is common; it’s diagnosed in roughly 20 to 40 percent of dogs “referred to animal behavior practices in North America,” says the American Veterinary Medical Association.