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The next ayahuasca? Gabon fights to protect sacred plant from US drug companies | Plants | The Guardian

Not every dose of ibogaine abroad comes from Gabonese iboga. The molecule can be made semi-synthetically from voacangine, found in the related African tree Voacanga africana. But the iboga root bark is particularly in demand for ceremonial use, and for the manufacture of extracts containing several of its alkaloids.