the effects of administration of i.v . ketamine 2 mg/kg body weight , sodium thiopentone 4 mg/kg body weight and ergometrine 0.5 mg , and intra-cervical 0.5 % lignocaine 20 ml were measured in the first trimester of pregnancy , and i.v . ketamine and sodium thiopentone in late pregnancy .
C0039925
thiopentone
C0936073
sodium thiopentone