Blepharospasm, Benign Essential, also known as benign essential blepharospasm, is related to blepharospasm and blepharospasm-oromandibular dystonia syndrome, and has symptoms including myoclonus, torticollis and spasmodic torticollis. An important gene associated with Blepharospasm, Benign Essential is DRD5 (Dopamine Receptor D5). The drugs Cannabidiol and Acetylcholine have been mentioned in the context of this disorder. Affiliated tissues include eye and tongue, and related phenotype is blepharospasm.