Final answer:
Amobarbital (Amytal) is not typically used in the treatment of panic disorders, while Amitryptyline (Elavil), Diazepam (Valium), and Phenelzine (Nardil) can be used in managing the symptoms of this condition.
Step-by-step explanation:
The question relates to the pharmacological treatment of panic disorders, and the options provided include various types of medication. In the context of treating panic disorders, Amitryptyline (Elavil) is a tricyclic antidepressant that might sometimes be used for its anxiolytic properties, although it is not a first line treatment. Amobarbital (Amytal) is a barbiturate, which is not typically used for panic disorders due to its high potential for dependence and overdose. Diazepam (Valium), a benzodiazepine, is commonly prescribed to quell panic attacks and alleviate anxiety symptoms. Lastly, Phenelzine (Nardil) is a monoamine oxidase inhibitor (MAOI), which is used less frequently due to its side effects, but can still be prescribed as a treatment for panic disorders. Therefore, the medication not used in the treatment of panic disorders among the given options is Amobarbital (Amytal).