Like most ME/CFS treatments, PEM busters which work for one patient may not work for the next.
This anti-PEM effect of benzos makes me wonder whether
kava kava (Piper methysticum) might have anti-PEM effects, as kava has sensitizing effects on the GABA receptors: this herb it is thought will actually
increase the number of GABA receptor binding sites over time (see
this study).
Nearly all drugs or herbs which act on GABA tend to cause some degree of tolerance (receptor desensitization), but kava is one of the very few supplements or drugs acting on GABA which actually results in
reverse tolerance, making the GABA receptor more sensitive the long you use it.
For some people, benzodiazepines are highly addictive, and can cause hellish withdrawal symptoms lasting for 6 months or more when people do decide to come of benzos. They have to taper incredibly slowly for many months to try to avoid the "cold turkey" symptoms, and even with this super-extended taper, they still have horrible withdrawal symptoms.
But other people can stop benzos abruptly, and experience no adverse effective at all. And some people are in-between these two extremes, Years ago, Cort ran a
good survey on benzodiazepines, including withdrawal issues.
There is a new benzodiazepine called
imidazenil, which
@frozenborderline mentioned above, that creates only minimal tolerance and addiction. But is has not yet been licensed. The reason imidazenil does not result in tolerance and addiction is because it targets the alpha-5 subunit of the GABA-A receptor, rather than the alpha-1 subunit which both benzodiazepines and Z-drugs target.