Table 1.

Equianalgesic conversion.

Drug	Administration	Dose (mg)	Conversion factor	PO morphine equivalent dose (mg)
Morphine	PO	10	1	10
IV	10	3	30
Hydromorphone	PO	10	4	40
IV	10	20	200
Hydrocodone	PO	10	1	10
Oxycodone	PO	10	1.5	15
Tramadol	PO	10	0.25	2.5

PO, oral; IV, intravenous.