Zylin D 75/20 Capsule DR is a combination medication containing Pregabalin 75 mg and Duloxetine 20 mg, formulated for the management of neuropathic pain and certain mood disorders. Pregabalin, an anticonvulsant and analgesic agent, acts by modulating calcium channels in the central nervous system, thereby reducing the release of neurotransmitters involved in pain transmission. Duloxetine, a selective serotonin and norepinephrine reuptake inhibitor (SNRI), enhances the levels of these neurotransmitters in the synaptic cleft, contributing to its analgesic and antidepressant effects. The delayed-release (DR) formulation ensures optimal absorption and sustained therapeutic effect. Zylin D 75/20 is indicated for the treatment of diabetic peripheral neuropathy, fibromyalgia, generalized anxiety disorder, and major depressive disorder, particularly when neuropathic pain coexists with mood disturbances. It is essential to use this medication under medical supervision, with dosage adjustments based on clinical response and tolerability. Common adverse effects may include dizziness, somnolence, dry mouth, nausea, and fatigue. Caution is advised in patients with hepatic or renal impairment, and abrupt discontinuation should be avoided to prevent withdrawal symptoms. Zylin D 75/20 Capsule DR offers a synergistic approach by combining analgesic and antidepressant mechanisms to improve patient outcomes in complex pain and mood disorders.