Veterinary preparations for companion animals in the treatment of weight loss, obesity, urine spraying, chronic pain, gastrointestinal disorders, neurodegenerative disorders, parasitic infestations, neurological disorders, anxiety, hypertension, dermatitis, cancer, anemia associated with chronic renal failure, fleas, pain associated with orthopedic and soft tissue surgery, chronic kidney disease, and emesis; veterinary and pharmaceutical preparations, insecticides, parasiticides