TEVA Trazodone is a prescription antidepressant tablet formulated with trazodone hydrochloride. It is thought to work by increasing serotonin activity in the brain and acts at two different receptors. Available in 50 mg, 100 mg, and 150 mg strengths, each bottle includes 100 tablets for convenient dispensing. DINs: 02144263 (50 mg), 02144271 (100 mg), 02144298 (150 mg). Prescription required in Canada and Quebec.