From: Opioid prescribing practices following elective surgery in Otolaryngology-Head & Neck Surgery
Oral Morphine Equivalent Conversions [10, 11]
Opioid
Potency Ratio (Opioid: OME)
OME to Opioid Ratio
Morphine
1
Codeine
0.15
6.67
Tramadol
Oxycodone
1.5
0.67
Hydromorphone
5
0.2