Vixotrigine, formerly known as raxatrigine, is an analgesic which is under development by Convergence Pharmaceuticals for the treatment of lumbosacral radiculopathy (sciatica) and trigeminal neuralgia (TGN).[1] [2] [3] Vixotrigine was originally claimed to be a selective central Nav1.3 blocker, but was subsequently redefined as a selective peripheral Nav1.7 blocker. Following this, vixotrigine was redefined once again, as a non-selective voltage-gated sodium channel blocker. As of January 2018, it is in phase III clinical trials for trigeminal neuralgia and is in phase II clinical studies for erythromelalgia and neuropathic pain.[4] It was previously under investigation for the treatment of bipolar disorder, but development for this indication was discontinued.