(Zoetis Animal Health) Dormosedan Gel is indicated for sedation and restraint in horses. Each ml of Dormosedan Gel contains 7.6 mg detomidine hydrochloride. Dormosedan Gel produces sedation when administered sublingually at 0.018 mg per lb. Dormosedan Gel must be placed beneath the tongue of the horse, and is not meant to be swallowed. One 3 ml oral syringe provides dosage for up to 1210-1320 lbs. body weight. Detomidine hydrochloride.