| 摘要 |
The present invention describes the use of polysaccharides, surfactants, and dendrimers as bioavailability enhancers for oral pharmaceutical compositions . These substances exhert an inhibitory action of the gastrointestinal pump efflux proteins, such as the P-glycoprotein and the MDR protein, responsible for poor drug bioavailability and multidrug resistance. The formulations herein described comprise a medicinally active substance in association with said polysaccharides, surfactants, and dendrimers. They are well tolerated, are not absorbed by the gastrointestinal tract, and increase the bioavailability and the activity of orally administered medicaments, like e. g. antineoplastic, antiviral, antibiotic, or antidepressant medicaments.</SDOAB >
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