Succinylcholine is used with caution in all except
Sch is the only muscle relaxant that causes vagal stimulation and causes bradycardia (attenuates tachycardia and hypeension ) In burns, crush injury and myasthenia gravis can cause severe hyperkalemia. Ref: Morgan 4th/e p 214
Mythenia gravis
Burns
Crush injury
Tachycardia
Muscle relaxants