Get your nod on, opiate lovers!

[edit] Comparison Chart

Drug	Times more potent than codeine	Dose equivalent to 30 mg codeine	Times more potent than morphine (intravenous)	Dose equivalent to 10 mg morphine (intravenous)
Aspirin *	.027	1080 mg	.0027	3600 mg
Dextropropoxyphene	.250	120 mg	.025	400 mg
Codeine	1	30 mg	.1	100 mg
Tramadol **	1	30 mg	.1	100 mg
Dihydrocodeine	1 - 1.5	20 - 30 mg	.166 - .1	67 - 100 mg
Pentazocine	1.7	18 mg	.166	60 mg
Anileridine	2.5	12 mg	.25	40 mg
Meperidine	3	9 mg	.333	30 mg
Pantopon	5	6 mg	.5	20 mg
Hydrocodone	6	5 mg	0.6	16.7 mg
Morphine (intravenous)	10	3 mg	1	10 mg
Dihydromorphine	11 - 12	2 - 3 mg	1.1 - 1.2	8-9 mg
Methadone ***	10 - 20	1.5 - 3 mg	1 - 2	5 - 10 mg
Oxycodone	15 - 20	1.5 - 2 mg	1.5 - 2	4.5 - 6 mg
Heroin (intravenous)	22	1.36 mg	2.2	4.5 mg
Hydromorphone	50	0.6 mg	5	2 mg
Butorphanol	50 - 60	.5 - .6 mg	5 - 6	1.5 - 2 mg
Oxymorphone	70	0.4 mg	7	1.4 mg
Levorphanol ***	80	0.26 mg	8	0.8 mg
Buprenorphine	400	0.075 mg (75 ug)	40	0.25 mg (250 ug)
Fentanyl	500 - 1000	0.03 - 0.06 mg (30-60 ug)	50 - 100	0.1 - 0.2 mg (100-200 ug)
Sufentanyl	5000 - 10,000	1 - 2 ug	500 - 1000	10 - 20 ug
Carfentanyl	100,000	0.3 ug	10,000	1 ug
(3R,4S,beta-S)-13-fluoro ohmefentanyl	180,000	0.2 ug	18,000	0.6 ug

[edit] See also