Histamine release is one of the common features with administration of: (A) Atracurium, (B) Adrenaline, (C) Thiopentone, (D) Ketamine
Answer is A. histamine is released by atracurium , all skeletal musle relaxants release histamine other drugs releasing histamine are morphine,vancomycin etc. Ref: kd tRipathi 8th ed.