Which of the following is a tricyclic antidepressant?

Elavil is indeed a tricyclic antidepressant (TCA), which is a class of drugs used primarily for the treatment of major depressive disorder and certain other conditions, such as chronic pain and anxiety disorders. TCAs function by inhibiting the reuptake of neurotransmitters like serotonin and norepinephrine in the brain, which helps to elevate mood and improve emotional well-being.

In contrast, the other medications listed are not tricyclic antidepressants. Wellbutrin is classified as an atypical antidepressant and primarily affects dopamine and norepinephrine, while Nardil is a monoamine oxidase inhibitor (MAOI) that works by inhibiting the enzyme responsible for breaking down neurotransmitters. Prozac, on the other hand, is a selective serotonin reuptake inhibitor (SSRI), which selectively targets serotonin reuptake to enhance mood. Understanding these classifications and their mechanisms of action is crucial in pharmacology for effective patient care and medication management.