Ensaculin (Anseculin), a novel benzopyrone partially substituted with piperazine, showed memory-enhancing effects in passive and conditioned avoidance paradigms in normal and artificially amnesic rodents.

Lecithins, egg can be used as an excipient. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs.

(+)-N-Methylhernovine is an aporphine alkaloid that can be isolated from Hernandia nymphaeifolia. (+)-N-Methylhernovine exhibits slight cytotoxicity in cancer cells.