To dream of being sedated indicates your try to get rid or avoid of particular event or situation in your life. The dream could also show that you are trying to escape the duty you have towards certain situation.
Dream dictionary: Sedate dream meanings
…(Helper | Loins | Offspring | Spinal column) In a dream, one’s backbone represents man’s helper or his right hand man. If one has a strong backbone in a dream, it represents his sedate manners, calm and serious composure. Whether one’s backbone is weak or strong in the dream, it could also represent his son. If one finds his backbone strong in the dream, it means that he will develop wisdom or beget a son who will grow strong and become a just person. Perhaps one’s backbone could be interpreted to mean crucifixion, or it could mean marriage to a virgin. If one sees a tree growing from his backbone in a dream, it means an illness. If a sick person sees his backbone turned into iron in a dream, it means recovering from his illness. (Also see Back)…