Abstract
Hecogenin acetate (HA) is a steroidal sapogenin-acetylated with pharmacological properties which have already been described in the literature such as, anti-inflammatory, anti-hyperalgesic and antinociceptive, but it has low solubility in aqueous media. Therefore, in an attempt to overcome this, we set out to create inclusion complexes between HA and b-cyclodextrin (b-CD) and evaluate the antinociceptive effects in the orofacial nociception in mice. The complexes were prepared using different methods in the molar ratios 1:1 and 1:2 and characterized physicochemically. The results of the physicochemical characterization elucidated inclusion complexes formation between b-CD and HA by freeze drying method in the molar ratio 1:2, which obtained a complexation efficiency of 92% and produced superior analgesic effect in animal models for orofacial pain at a lower dose when compared to HA alone.
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