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Specific
alcuronium
depsipeptide (FR901228, FK-228)
dextromethorphan (Benylin DM)
morphinan
quinuclidine
rifampin; rifampicin (Rifadin, Rimactane)
tetrodotoxin; maculotoxin; spheroidine; tarichatoxin; tetrodontoxin; fugu poison
tropane
General
heterocyclic compound