Methyl-β-cyclodextrin is a randomly methylated form of the cyclic oligosaccharide β-cyclodextrin, with improvement on the aqueous solubility of various compounds.

Digitonin is a natural product isolated and purified from the herbs of Digitalis purpurea.

γ-Cyclodextrin is an endogenous metabolite.

β-Cyclodextrin is a cyclic polysaccharide composed of seven units of glucose (α-D-glucopyranose) linked by α-(1,4) type bonds. β-Cyclodextrin has often been used to enhance the solubility of drugs. β-Cyclodextrin has anti-influenza virus H1N1 activities.

HP-β-CD is used to improve the solubility of lipophilic drugs. It is also an inhibitor of amyloid-β aggregation and Aβ-induced toxicity.