MORPHINE EQUIVALENT DOSES

100 mg of MST has the equivalent dose of 25 ug/hr of fentanyl over a day. A 24 hour diamorphine dose should be 1/3 of the 24 hour morphine dose.

The breakthrough dose of short acting morphine such as oramorph should be 1/6th of the total 24 hour dose of morphine.

The equivalent dose of oral oxycodone 0.833 is to diamorphine SC 1.3 (about 2/3).