Opioid Dosing Equivalents

Drug	Dose		T1/2
Morphine	10 mg I.V.	30 mg p.o.	2-4
Codiene	100 mg I.V	200 mg p.o.
Hydromorphone	1.5 mg I.V.	7.5 mg p.o.	2-3
Hydrocodone		30 mg p.o.
Methadone	10 mg I.V.	20 mg p.o.	15-20
Fentanyl	100 ug = 4 mg I.V. morphine		1-2
Meperidine	75 mg I.V.	300 mg p.o.	2-3
Levorphanol tartrate	2 mg I.V.	4 mg p.o.	12-16
Oxycodone		30 mg p.o.	3-4
Oxymorphone	1 mg I.V.	6 mg p.r.	2-3