Episodic Ataxia, Type 2, also known as episodic ataxia type 2, is related to familial hemiplegic migraine and spinocerebellar ataxia 6, and has symptoms including ataxia, tinnitus and vertigo. An important gene associated with Episodic Ataxia, Type 2 is CACNA1A (Calcium Voltage-Gated Channel Subunit Alpha1 A), and among its related pathways/superpathways are Transmission across Chemical Synapses and DREAM Repression and Dynorphin Expression. The drugs Sargramostim and Urofollitropin have been mentioned in the context of this disorder. Affiliated tissues include brain and cerebellum, and related phenotypes are nystagmus and ataxia