Blepharospasm-Oromandibular Dystonia Syndrome Watchlist (log in to enable) Retrieved 2021-01-23 Source Orphanet Trials — Genes TOR1A, THAP1 Drugs Botulinum toxin type A ( BOTOX, DYSPORT ) Interested in hearing about new therapies? Registered! A focal dystonia involving symmetrical benign essential blepharospasm (BEB) and oromandibular dystonia.