Dihydro-β-erythroidine is an alkaloid isolated from the seeds of erythrina and a competitive antagonist at the nicotinic acetylcholine receptor (nAChR).
Curzon, P., et al.: Brain Res. 714, 185 (1996); Bancroft, A. and Levin, E. D.: Neuropharmacol.. 39, 2770 (2000)