It is tricky to switch a person from such high Oxy levels, safely to
methadone.
Presence of other drugs may also contribute to the risk of QT events. Low potassium and low magnesium will also push a person into QT risk.
There was a woman on another forum we used to visit, who did this (spinal patient) and she died the first night at home on methadone.
It is impossible to predict how a person will do when huge doses are needed IMO.
Methadone remains in the body a long time, after the pain relief actions decrease. It is this factor that complicates things.
This site maybe helpful to give approximate dose conversion, but it is not 100% reliable with methadone because of methadone's complex metabolism etc, and QT risk.
http://www.globalrph.com/narcoticonv.htm
I would wish/hope that her management doctor has good experience with methadone. Generic morphine is not so expensive and may be safer.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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