Selective, high affinity, non-competitive α1A adrenoceptor antagonist (Ki = 0.35 nM). Exhibits no significant activity against a range of other GPCRs, including α2A, β1 and β2 adrenoceptors. Antagonizes effects of phenylephrine on isolated rabbit prostate muscle in vitro and on intra-urethral pressure in rats.

SynuClean-D is an α-synuclein aggregation inhibitor preventing fibril propagation, disrupting mature amyloid fibrils, and abolishing the degeneration of dopaminergic neurons in an animal model of Parkinson’s disease.

Taraxeryl acetate shows the significant antiviral activity against herpes simplex virus (type II). It has less effect on cell cycle arrest and apoptosis of AGS cells than taraxerol.