4-DAMP (4-DAMP methiodide) is a selective muscarinic M1 and M3 subtype receptor antagonist used in the study of allergic rhinitis and cardiovascular disease.

9-Ethyladenine is a partially effective inhibitor of APRT (adenine phosphoribosyltransferase).

Cynandione A, an acetophenone derived from Cynanchum wilfordii, has anti-inflammatory activity and significantly reduces pro-inflammatory cytokine overexpression via macrophage α7 nAChR activation and subsequent IL-10 expression.