Which class of medications is primarily used to treat monopolar disorder?

The correct answer indicates that all of the medication classes listed—tricyclic antidepressants, MAO inhibitors, and serotonin reuptake inhibitors—can be used to treat monopolar disorder, commonly understood as major depressive disorder. Each of these medication classes works in different ways to alleviate symptoms of depression.

Tricyclic antidepressants are one of the earliest classes of antidepressants developed and are known to be effective in treating major depressive disorder by increasing the levels of certain neurotransmitters in the brain, particularly norepinephrine and serotonin.

MAO inhibitors function by inhibiting the monoamine oxidase enzyme, which breaks down neurotransmitters like serotonin and norepinephrine. By preventing this breakdown, these medications can increase the availability of these important chemicals, thereby improving mood and alleviating depressive symptoms.

Serotonin reuptake inhibitors, typically referred to as selective serotonin reuptake inhibitors (SSRIs), are widely prescribed for depression. They work by blocking the reabsorption (reuptake) of serotonin in the brain, making more serotonin available in the synaptic space, which can enhance mood.

Since all these classes of medications have been shown to be effective in managing the symptoms associated with major depressive disorder, the answer encompasses the range of available pharmac