Fig. 4From: Pharmacokinetics of five phthalides in volatile oil of Ligusticum sinense Oliv.cv. Chaxiong, and comparison study on physicochemistry and pharmacokinetics after being formulated into solid dispersion and inclusion compoundSEM graphs of solid dispersion, inclusion compound of VOC, carrier and physical mixture (× 2000). a P188; b physical mixture of VOC and P188; c VOC-P188; d β-CD; e physical mixture of VOC and β-CD; f VOC-β-CDBack to article page