Approximate equivalent doses of transdermal opioids

Buprenorphine transdermal patch strength
(micrograms per hour)

Approximate* oral morphine dose
(mg in 24hrs)

Approximate oral codeine dose
(mg in 24hrs)

BuTrans® 5

12

120

BuTrans® 10

24

240

BuTrans® 20

48

Transtec® 35

84

Transtec® 52.5

126

Transtec® 70e

168

*Approximate mid-range oral morphine doses are described here; prescribers should note that manufacturers describe a range of oral morphine doses for each strength of patch.

Fentanyl transdermal patch strength
(micrograms per hour)

Approximate* oral morphine dose
(mg in 24hrs)

12

30

25

60

50

120

75

180

100

240

*Approximate mid-range oral morphine doses are described here; prescribers should note that manufacturers describe a range of oral morphine doses for each strength of patch.

Use the links below for further information about Transdermal Opioids:

DISCLAIMER

This Guide is intended for use by healthcare professionals and the expectation is that they will use clinical judgement, medical, and nursing knowledge in applying the general principles and recommendations contained within. They are not meant to replace the many available texts on the subject of palliative care.
Some of the management strategies describe the use of drugs outside their licensed indications. They are, however, established and accepted good practice. Please refer to the current BNF for further guidance.
While WMPCPS takes every care to compile accurate information , we cannot guarantee its correctness and completeness and it is subject to change. We do not accept responsibility for any loss, damage or expense resulting from the use of this information.