Which of the following drugs is the first dedicated antidepressant that was initially used to treat tuberculosis?

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Isoniazid is the first dedicated antidepressant that was initially used to treat tuberculosis. It was later discovered that it had mood-elevating effects as well. Prozac, Lexapro, and Ketamine are all antidepressants, but they were not initially used to treat tuberculosis. Xanax is a benzodiazepine used to treat anxiety disorders, not depression or tuberculosis.

Which of the Following Drugs Is the First Dedicated Antidepressant