OBJECTIVE To investigate the attribution of berberine hydrochloride in the biological pharmaceutics classification system (BCS) and to determine its taxonomic properties. METHODS The solubility of berberine hydrochloride was investigated in pH 1.0-8.0 medium; its absorption parameters related to the rat duodenum, jejunum, ileum and colon were derived from in-situ intestinal perfusion model in vivo to determine its permeability. RESULTS The solubility in different pH dissolution media with the value of drug metering number (D0) and combined with the pharmacopoeia regulations found that berberine hydrochloride belonged to the low solubility drugs. From the results of permeability experiments, it was found that the permeability coefficient Peff(rat) of berberine hydrochloride in each intestinal segments was exceeded than 5.0×10-5 cm·s-1 in rats, and the conversion into human absorption Fa(human) was exceeded than 85%, therefore, it was determined to be the high permeability drug. CONCLUSION The combination of solubility and permeability test results proves that berberine hydrochloride is a low solubility and high permeability drug, which belongs to BCS class Ⅱ.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |