|  ORAL: 20mg od/bid. 
   IM: 15-60mg or IV upto 45mg base. 
   SHOCK WITH MI: IV bolus 60mg, followed by IV 0.1% infusion in 5% D. 
   SHOCK OR HYPOTENSION: IV/IM 20-80mg followed by IV 1% infusion in 5%D.
   HYPOTENSION DURING SPINAL ANAESTHESIA: IV bolus 30-45mg, repeated if necessary or followed by IV 1% infusion in 5% D. |