Table 2.

Morphine equivalent conversion factors

Opioid drug	Oral morphine equivalent dose
Buprenorphine	Multiplied by 60
Butorphanol	Multiplied by 7
Codeine	Divided by 12
Dihydrocodeine	Divided by 10
Fentanyl (patch)	Multiplied by 150
Hydrocodone	Multiplied by 1.5
Hydromorphone (oral)	Multiplied by 5
Hydromorphone (parenteral)	Multiplied by 10
Levorphanol	Multiplied by 6
Meperidine	Divided by 12
Methadone	Multiplied by 10
Morphine (parenteral)	Multiplied by 2
Oxycodone	Multiplied by 1.5
Oxymorphone	Multiplied by 10
Pentazocine	Divided by 4
Propoxyphene	Divided by 24
Tramadol	Divided by 5