Herbs: Larrea Tridentata (Creosote Bush)

FAMILY: Zygophyllacea
COMMON NAMES: Chaparral, Creosote bush, creosotum
PART USED: leaves, tinctured or dried for tea
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Herbs: Bitters overview

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Herbs: the bitterest of them all--Gentian lutea

FAMILY: Gentianaceae
MORE SPECIES: Gentiana calycosa is native to the PNW. Varieties found all over the planet.
COMMON NAMES: bitter root, bitterwort, gall weed, gentiana, gentianae radix, pale gentian, stemless gentian, yellow gentian, wild gentian, quin jiao
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Dyskinesia in Parkinson's, and the Blue Lens

Neuroleptic drugs act by blocking dopamine receptors (mainly D2 receptors), and can result in dyskinesia similar to what is experienced by people with Parkinson's. For some reason writhing and shaking movements can be stopped in some patients by blue-tinted sunglasses.