TCAs are a class of drugs that's been used for decades to treat depression, anxiety, and certain kinds of pain. Tricyclic antidepressants, also known as TCAs, were first approved by the Food and Drug Administration (FDA) to treat depression and obsessive-compulsive disorder (OCD). These drugs work by increasing the concentrations of two mood-altering chemicals —… Continue reading Tricyclic Antidepressants – Precautions & Side Effects