Amitriptyline should be used in conjunction with techniques to try to change the unwanted behavior. Discuss, in detail, what behavior modification techniques will work on your pet. Also discuss how long the treatment period will be and what type of outcome is expected. You and your veterinarian should talk about any other treatment options that are recommended for your pet.
Tell your veterinarian if your pet has had seizures, or has diabetes, liver disease, thyroid disease, heart disease, glaucoma, "dry eye", or adrenal tumors. Also tell your veterinarian if your pet may be pregnant, is nursing, or if you intend to breed your pet.
Notify your veterinarian of any other medications or supplements your pet is taking, especially selegiline (Anipryl) or amitraz (Preventic tick collars or Mitaban), and if your pet has had any reactions to previous medications.