Selective norepinephrine reuptake inhibitors (SNRIs) are a class of antidepressant medications that work by inhibiting the reabsorption of two key neurotransmitters, norepinephrine and serotonin. Dr. Tarek Asaad's paper discusses SNRIs, covering theories about their mechanisms of action and exploring their clinical applications in treating conditions like depression and anxiety disorders. The paper aims to bridge theoretical understanding of SNRIs with practical guidance for clinicians on incorporating them into patient care.