I think this can help you about the alkaloids composition in the Chapilonga , because many sources say DMT is the only alkaloid in Chapilonga but isn t correct.
Banisteriopsis rusbyana or "Diplopterys cabrerana" (Malpighiaceae):
leaves from one specimen in a ayahuasca admixture in Peru has been shown to contain from 0.17%-1.74% DMT (from 4 seperate studies)1 Contains a wealth of tryptamines with DMT as major alkaloid and NMT, 5-MeO-DMT and bufotenine. In "TIHKAL" this species contains 1.3% DMT. Jonathan Ott "Ayahuasca Analouges" 1994 p.38