Table 5: Duration of analgesia (in minutes).

                 Time in Minutes                        No. of Patients
Control Clonidine
101-150 30 00
151-200 01 00
201-250 00 01
251-300 00 00
301-350 00 11
351-400 00 09
401-450 00 06
451-500 00 04
     Minimum time 120 250
     Maximum time 165 465
Mean ± S.D. 136 ± 11.74 380 ± 63.01

values represented in terms of Mean ± SD. P-value < 0.001 was highly statistically significant.