Palliative Pharmacotherapy/Drug-Specific Information/Opioids/Equianalgesic Tables & Opioid Conversions

Why Equianalgesic Tables are Broken

Most equianalgesic tables assume that one can use the same ratio to convert to and from any two opioids. However, these ratios are not always accurate bidirectionally.

For a good summary of why equianalgesic tables are inaccurate at best, please read "Opioid Equianalgesic Tables are Broken" by Daniel Rosielle on Pallimed.org.

Further Reading

• Daniel, Rosielle. “Opioid Equianalgesic Tables Are Broken.” Pallimed, 21 Mar. 2022, https://www.pallimed.org/2022/03/opioid-equianalgesic-tables-are-broken.html.