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. 2015 Dec 21;5(12):e009898. doi: 10.1136/bmjopen-2015-009898

Table 2.

Opiate analgesia converted to morphine equivalent dose

Opiate analgesia Route Typical dose Total 24 h dose Equivalent morphine 24 h dose Four hourly oral morphine dose Relative potency to oral morphine (24 h)
Codeine22 Oral 60 mg four times a day 240 mg 24 mg 4 mg 0.1
Dihydrocodeine22 Oral 60 mg four times a day 240 mg 24 mg 4 mg 0.1
Tramadol22 Oral 50 mg four times a day 240 mg 40 mg 6.6 mg 0.2