On the ward , the levobupivacaine group used significantly less paracetamol ( 0.5 0.7 versus 2.0 2.0 ; p < 0.001 ) and metamizole ( 0.2 0.4 versus 1.2 1.4 ; p < 0.001 ) , but differences in dexketoprofen were not significant ( 0.03 0.2 versus 0.2 0.6 ; p = 0.074 ) .