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Maranham Jaborandi (Pilocarpus microphyllus)
Maranham Jaborandi (Pilocarpus microphyllus)
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This rainforest understory shrub is used medicinally to treat glaucoma, thanks to an alkaloid in its leaves called pilocarpine that “stimulates the secretions of the respiratory tract, the salivary, lachrymal, gastric and other glands, weakens the heart action, [and] accelerates the pulse rate,” according to a paper put out by researchers at Purdue University – and, most vitally, can relieve pressure in the eye.

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