Amitriptyline is a tricyclic antidepressant drug with antihistaminic, anticholinergic, and local anestetic properties It is recommended for the management of anxiety-related behavioral disorders, including separation-anxiety in dogs and urine spraying and excessive grooming in cats.

Comes in 10, 25, 50, 75, or 100mg and is packaged as a 100 or 1000 count bottle.