Buprenorphine patches are approximately equivalent to the following 24-hour doses of oral morphine
Morphine salt Daily dose |
|
Patch |
Change |
12mg |
≡ |
BuTrans® ‘5’ patch |
7-day |
24mg |
≡ |
BuTrans® ‘10’ patch |
7-day |
48mg |
≡ |
BuTrans® ‘20’ patch |
7-day |
84mg |
≡ |
Transtec® ‘35’ patch |
4-day |
126mg |
≡ |
Transtec® ‘52.5’ patch |
4-day |
168mg |
≡ |
Transtec® ‘70’ patch |
4-day |
Licence: Licensed for use in children over the age of 6 years. Cutting the patches is not recommended by manufacturers. Sublingual tablets no licensed under 6 yrs.
|
Route |
Relative potency to oral morphine |
Codeine |
Oral |
0.1 |
Dihydrocodeine |
Oral |
0.1 |
Buprenorphine |
Sublingual |
60 |
Pethidine |
Oral |
0.125 |
IM |
0.375 |
|
Tramadol |
Oral |
0.1-0.2 |
Morphine |
SC infusion |
2 |
Diamorphine |
SC infusion |
3 |
Oxycodone |
Oral |
2 |
SC infusion |
3-4 |
|
Fentanyl |
Patch |
150 |
SC infusion |
150 |
|
Alfentanil |
SC infusion |
30 |
Hydromorphone |
Oral |
5-10 |
See Opioid Conversion Guide in adult section
PCM © 2012