Pregabalin 100mg is an anticonvulsant used to treat epilepsy, neuropathic pain, and generalized anxiety disorder (GAD). Pregabalin 100 mg is an anticonvulsant used to treat epilepsy, neuropathic pain, and generalized anxiety disorder (GAD). Pregabalin 100mg is used in treating: 01. Treatment of Neuropathic pain 02. Treatment of Epilepsy/Seizures 03. Treatment of Fibromyalgia How Pregabalin 100 mg pill Works: Pregabalin 100mg capsule functions in a variety of ways: ➢ By lowering the aberrant electrical activity in the brain caused by nerve pain, lyrica 100mg capsule prevents seizures in people with epilepsy. ➢ lyrica 100 mg reduces anxiety by preventing the brain from generating the chemicals that cause anxiety. ➢ Pregabalin 100mg capsule pill does this by interfering with the pain signals travelling from the brain and down the spine.