ABSTRACT
The following definitions should be familiar to all clinicians who are managing a chronic pain patient undergoing a surgical procedure (2,8).
Morphine-equivalent daily dose (MEDD): It is the patient’s daily dose of chronic opioid medication, standardized to its equivalent daily dose of oral morphine. For example, a patient consuming oxycodone 100mg per os daily would have an MEDD of 150. A patient consuming morphine sulfate 200mg per os daily would have an MEDD of 200 (see Tables 1 and 2).
