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The medication that treats Parkinson's — and the chain reaction it sets off
Most people living with Parkinson's disease eventually find themselves managing not one medication but many. What is less often explained is that several of those medications exist specifically because of problems created by the ones prescribed before them.
The primary treatment — levodopa — works by getting dopamine to the brain. Its companion drug depletes vitamin B6 throughout the entire body. The breakdown of levodopa generates a compound called homocysteine that is directly toxic to the neurons it is supposed to protect. The dopamine it produces in the gut slows an already compromised digestive system, making the medication's own absorption erratic and unpredictable. The nausea it causes requires another medication. The constipation requires another. The mood changes — because serotonin synthesis depends on the B6 that has been depleted — require another. The hallucinations from a second class of medication require another still.
Each prescription is a reasonable response to a genuine problem. None of them is wrong in isolation. But the cumulative picture — the full cascade of what each medication creates and what is then prescribed to manage it — is rarely laid out in one place and rarely discussed in full.
We have mapped it.
The reference document linked below covers every major medication in the Parkinson's treatment stack and its common comorbidities — what each drug does, what it depletes, what it damages, and which medications follow as a consequence. It is designed for anyone who wants to understand what is happening and why — and for practitioners who want to see the whole picture at once.
Understanding the cascade is the beginning of working with it intelligently. kathrynalexander.com.au/blog-2/6a61n3q…
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