Diabetic Neuropathy: Burning or tingling pain in the feet and hands caused by high blood sugar. Post-Herpetic Neuralgia: Persistent pain following a shingles infection. Sciatica & Spinal Pain: Nerve compression pain in the back or legs. Fibromyalgia: Chronic widespread muscle and nerve pain.

Pregabalin reduces the release of "pain chemicals" (excitatory neurotransmitters) by blocking specific calcium channels in the brain and spinal cord. Nortriptyline increases the levels of serotonin and norepinephrine in the brain. In the context of pain, this strengthens the body's natural "pain-killing" signals sent from the brain down to the spinal cord. Methylcobalamin acts as a repair agent. It helps produce myelin, the protective sheath that covers nerve fibers, which is often damaged in chronic pain conditions.

Common: Drowsiness, dizziness, and dry mouth. Physical: Blurred vision, weight gain, or constipation. Neurological: Difficulty concentrating or "brain fog." Occasional: Swelling of the ankles or hands (edema).