Pregabalin 450 mg capsules are prescribed to treat neuropathic pain associated with diabetes, herpes zoster, or spinal cord injury. This medication is also used to prevent seizures, known as convulsions, in epilepsy patients. It is also used to treat severe conditions like fibromyalgia and anxiety disorders. Consulting a doctor for the proper dose, duration, and intake pattern is necessary to avoid any side effects and health complications.