Tabernaemontana sananho Ruiz & Pav.
Apparently added to ayahuasca (bark? root? Citation needed)
It is used as eyedrops by the Kaxinawa, using the juice (acqueous extraction? Squeezed 'resin'?) of the root and trunk scrapes, for the purpose of improving luck and concentration when hunting. Also when being stung by "tocandira" and stingray, topically applied. Also the latex from the bark is used for tooth ache, topically applied with some cloth, until the tooth falls out. (Ika Muru, 2014)
Much as T. rimulosa. The leaves, softened by fire, are applied to relieve rheumatic pains. In Pastaza, taken one week after delivery. "Pulp is used as a gargle for sore throat and colds". "Tikuna" mix the latex with water for eye wounds . "Jivaro" apply the bark juice to toothache. Considered sudorific, tonic, used for colds, obesity, rheumatism, syphilis. (Amazonian Ethnobotanical Dictionary)
Colombia: A mixture of latex and water can be used to cure eye wounds [375]. (Van Beek et al 1984)
Peru: In the upper part of the Amazon the plant has long been considereda panacea, the name sanango signifies a more or less all-purpose medicinal plant. In the Leticia area it is employed as a febrifuge, emetic, diuretic, calmative and for various minor ailments. A tepid decoction of the leaves and bark is used to wash wounds and afterwards powdered bark is put
over the wound; this is repeated three times a day for 10 days. A water extract of the root is drunk three times a day during 15 days against rheumatism and for wounds [ 375]. (Van Beek et al 1984)
Peru, Brazil: An infusion of the roots is used against rheumatic pains
[376]. (Van Beek et al 1984)
Alkaloid content: Coronaridine, Heyneanine, 3-Hydroxycoronaridine, Ibogamine and Voacangine (Van Beek et al 1984)