midazolam: an injectable form of benzodiazepine (trade name Versed) useful for sedation and for reducing pain during uncomfortable medical procedures
benzodiazepine: any of several similar lipophilic amines used as tranquilizers or sedatives or hypnotics or muscle relaxants; chronic use can lead to dependency
whirling dervish: a dervish whose actions include ecstatic dancing and whirling