A sedative or tranquilizer (or tranquilliser, see American and British English spelling differences) is a substance that induces sedation by reducing irritability or excitement. At higher doses it may result in slurred speech, staggering gait, poor judgment, and slow, uncertain reflexes.oses of sedatives such as benzodiazepines, when used as a hypnotic to induce sleep, tend to be higher than amounts used to relieve anxiety, whereas only low doses are needed to provide a peaceful effect.
1 Scab, a hard coating on the skin formed during the wound healing reconstruction phase.  scAb, single-chain antibody fragment.
Sheep scab is a major source of economic loss in affected flocks and is a serious threat to sheep welfare.Infestations can be very debilitating with significant loss of condition, secondary infections, hypothermia and eventually deaths.his is usually through forced sheep-to-sheep contact at market, in livestock lorries, shared rubbing posts etc. However, shearing combs and cutters, contaminated clothing, tags of wool or scab attached to brambles bushes etc. can also spread scab.