Physostigmine (Eserine) is a reversible acetylcholinesterase (AChE) inhibitor. Physostigmine can crosses the blood-brain barrier and stimulates central cholinergic neurotransmission. Physostigmine can reverse memory deficits in transgenic mice with Alzheimer's disease. Physostigmine is also an antidote for anticholinergic poisoning.

7,4'-Dihydroxyhomoisoflavane is a natural antioxidant. 7,4'-Dihydroxyhomoisoflavane has ABTS radical-scavenging capacity with an IC50 of 0.22 mg/mL.

2-Carene is a natural compound.