The leaves of B. Caapi have different quantities of harmine and tetrahydroharmine then what is present in the vine. People debate on the ratios of the vine and leave alkaloids, however the fact remains that the majority of bio-assays by individuals who smoke the leaf report that the leaf provides a much clearer, less mentally fogging and intoxicating experience then the tea. The addition of vine reported can assist in the strengthening of the over all effects, as well as duration, but the addition of vine to the blend can create more of a stoning effect.