I would not be surprised about the repurposing- given the innovation gap and problems- especially costs involved in developing nde’s. In fact I have seen some research on using anti-psychotics for chronic pain.
The capitalistic/modernistic/scientistic model of pain care is assumed to be right as the natural order of things by its purveyors. Im a Christion- and my religion tells me there are many false prophets and to “test everything” So Im not stuck on buying into the modern way of pain care and its frequent use of the big lie technique to market its products. I use critical theory to see what is not there so to speak and the modern way of pain care is lacking in many ways. Its anti-democratic and divisive and social darwinism writ large. I believe in a more classical approach- more inclusive and syncretistic approach to pain care. But such an approach i s a great threat to the egos of the powers that be that dont believe all elements of society should work together to improve pain care.
L-tyrosine is a non-essential amino acid that can be used to stop restless legs from opiate withdrawal. L-tyrosine converts to L-dopa in the brain. L-dopa then converts to the neurotransmitter dopamine. Considerable evidence suggests that RLS is related to a dysfunction in the brain’s basal ganglia circuits that use dopamine, which is needed to produce smooth, purposeful muscle activity and movement. Disruption of these pathways frequently results in involuntary movements. Individuals with Parkinson’s disease, another disorder of the basal ganglia’s dopamine pathways, often have RLS as well.