Tricyclic antidepressants possess anticholinergic, alpha 1 anti-adrenergic, and H1 antihistaminic properties, and an overdose affects patients' quality of life, which has led to the development of novel antidepressant drugs. Selective serotonin reuptake inhibitors (SSRIs) are non-sedating drugs that selectively reuptake serotonin and are effective against anxiety. Adverse effects of SSRIs include gastrointestinal disturbances, sexual dysfunction, and bleeding tendency. Serotonin noradrenaline reuptake inhibitors (SNRIs) are non-sedating agents that are expected to improve volition. SNRIs are effective against chronic pain, although they are associated with gastrointestinal symptoms, tachycardia, and elevated blood pressure. Mirtazapine is a sedative drug used in patients with anorexia and insomnia. However, drowsiness and weight gain are known adverse effects of this medication. Vortioxetine is a non-sedative drug associated with gastrointestinal symptoms; however, insomnia and sexual dysfunction are less common.