Long-term Intrathecal Morphine and Bupivacaine in Patients with Refractory Cancer Pain Results from a Morphine, Bupivacaine Dose Regimen of 0.5:4.75 mg/ml

Abstract

A constant intrathecal infusion with a morphine:bupivacaine ratio of approximately 1:10 and concentrations of morphine of 0.5 mg/ml and bupivacaine of 4.75 mg/ml may significantly improve the relief of refractory cancer pain with a certain risk of adverse effects (which should be balanced against pain by the patient) from the relatively high intrathecal bupivacaine doses and concentration.