Aporeine (Roemerine) is an aporphine alkaloid that can be isolated from many plants such as Annona senegalensis, Turkish Papaver and Rollinialeptopetala. Aporeine has been reported to exhibit antibacterial activity. It has also been demonstrated to have certain antifungal activity. Aporeine showed selective inhibitory effect on Cox-2.

Dihydro-β-erythroidine is a competitive nicotinic acetylcholine receptor antagonist with moderate selectivity for the neuronal α4 receptor subunit. Dihydro-β-erythroidine have curare-like effects at peripheral nicotinic receptors, which include severe respiratory depression. Thus in vivo behavioral studies using Dihydro-β-erythroidine are limited. Dihydro-β-erythroidine antagonizes behavioral effects of nicotine in vivo. After s.c. administration, Dihydro-β-erythroidine was potent in blocking nicotine's effects except for antinociception. Intrathecal injection of Dihydro-β-erythroidine was effective in blocking the antinociceptive effect of nicotine.

2,5-dimethoxy-3,4-dimethylphenethylamine (also known as 2-CG) is a psychedelic compound, which was first synthesized by Shulgin. There is not much information about its pharmacologic or biologic action because 2-CG have been taken only by Shulgin and a small test group.