Anxiety & Calming

Clonidine is commonly used to treat noise phobias (including thunderstorms and generalized noise responses), separation anxiety, and fear-based aggression with identifiable triggers. 

Fluoxetine is an antidepressant used in cats and dogs to treat behavior disorders including obsessive compulsive disorder[ie. chasing tail, separation anxiety, inappropriate elimination]. Fluoxetine belongs to the group of drugs called selective serotonin reuptake inhibitors SSRI.
Brand Name: Prozac, Reconcile

Sertraline is used to assist in behavior modification programs aimed at treating fear-based behaviors, aggression, anxiety, and compulsive behaviors in dogs. The drug is also used to treat excessive fearfulness, compulsive behaviors, urine marking, and aggression in cats.

Sertraline is used to assist in behavior modification programs aimed at treating fear-based behaviors, aggression, anxiety, and compulsive behaviors in dogs. The drug is also used to treat excessive fearfulness, compulsive behaviors, urine marking, and aggression in cats.

Trazodone is a medication sometimes prescribed as an extra label use by Veterinarians to treat separation anxiety or anxiety in dogs. It is sold as individual tablets, in strengths of 50 mg or 100 mg.