1. Pregabalin is a non-γ-aminobutyric acid (GABA) receptor agonist or antagonist. It is a new calcium channel regulator, which can block voltage-dependent calcium channels and reduce the release of neurotransmitters. Clinically, it is mainly used for neuralgia related to diabetic Chemicalbook peripheral neuropathy, postherpetic neuralgia and as an adjuvant treatment for adult partial seizures, generalized anxiety disorder, central neuralgia (including neuralgia associated with spinal cord injury, stroke and multiple sclerosis) and fibromyalgia.