You captured the exact reasons my free samples remain languishing in the medicine cabinet! Plus one more to add - fear of possible interactions with other meds in my pharmacological cornucopia.

Unfortunately, much of what is possibly helpful in PD treatment is also new and untried (at least in this society), leaving one on the horns of the dilemma - to face the uncertain dangers of new treatments (hello, Guinna Pigs!) or certain destruction from Parkinson's. Every time I take a supplement, I'm swallowing a chemical uncertainty, choosing to wager that it will do something helpful, or at least nothing harmful. And in the meantime, as my ability to walk becomes more and more unpredictable, strange new pharmaceuticals sounding like Aztecs seem less risky, compared to my fantasy of the potential reward.