Medications for Severe Depression

Biomedical therapy is an essential approach in the treatment of psychological disorders, focusing on the neurological and physiological aspects of these conditions. One of the common methods used in biomedical therapy involves pharmacotherapy, which utilizes medication to alleviate symptoms of mental disorders. When dealing with severe depression, certain medications are frequently prescribed.

Which of the following classes of medications is primarily used to treat severe depression by increasing levels of neurotransmitters in the brain?