Background: Side effects of spinal anesthesia during Caesarean section is also minful, Group opioids have synergy with spinal anesthesia which increase the inhibition of pain but without increasing the sympathetic inhibition. So bupivacain-fentanyl mixture is effective with low-dose anesthesia well. Subjects: Assessment of mixture effects of bupivacain-low-dose fentanyl in spinal anesthesia for Caesarean section-level and condition of the newbom. Methods: Experimental research carried Randomized clinical evidence cn 120 pregnant women for Caesarean section, is divided into two group, N1: 6mg Marcain + 25u anesthetic Fentanyl
N28mg Marcain alone. Tract circuit, blood pressure, vomiting,itching, cold run before and after anesthesia. Results: No differences in age, weight, height between the two study groups. Disinterested good effect in both N1 and N2 team order is 100 percent and 93.3 percent. Inhibition of pain after 5 minutes on the T6 in group N1 higher N2 (80 percent compared to 70 percent) and after 8 minutes was 100 percent in both groups. The groups with matemal anesthesia alone bupivacain has hypotension rate higher than an anesthesia mixture bipivacain and fentanyl group (26,6 percent vs 10 percent). All cases of hypotension were responsive to treatment with seNice and compensation ephedrine 5-10mg. The women is in the fentanyl group used less bupivacainvomiting and nausea, itching, cold chivering (10 percent, 3.33 percent, 6.66 percent) than the group using simple bupivacain (36.66 percent, 6.66 percent, 26.66 percent). No significant difference statistically in the two groups apgar index research on infants. Conclusion: Sedation with mixed spinal bupivacain 6mg + 25/1g fentanyl in reducing the level side effects than merely bupivacain 8mg, there is no effect on infants.