INFLUENCE OF DIFFERENT CHANGES ON BIOAVAILABILITY OF MEDICINE CHITOSANS ANTIPHLOGISTIC DRUGS
Journal Title: Progress on Chemistry and Application of Chitin and its Derivatives - Year 2008, Vol 0, Issue
Abstract
The increased adsorption of anti-inflammatory drugs on polymer with pH increased from 7.6 to 8.0 may be explained by the swelling properties of chitosan, which increase with increasing environmental pH to alkaline levels, in which the compound occurs in the form of emulsion, what increases the surface of the polymer and its sorption capacity. Basing on the above considerations, it can be stated that the investigated drug interacts with the polymer; the interaction is of an antagonistic character and consists in adsorption of the drugs on a polymer such as chitosan.
Authors and Affiliations
Jan Meler
THE EFFECT OF A POLYVINYL ALCOHOL AND DEXTRANE ON THE PROPERTIES OF THERMOSENSITIVE HYDROPHILIC GELS CONTAINING LACTIC ACID COMPLEXED WITH CHITOSAN
Gels containing lactic acid complexed with chitosan at a stoichiometric ratio 1:1 and 2:1 and 5 - 25% content of polyoxyethylene glycol 200 reveal pH from 2.5 to 4.6. The addition of 20 – 25% poloxamer 407 increases the...
THE EFFECT OF A HYDROPHILIZING SUBSTANCE ON THE PROPERTIES OF THERMOSENSITIVE HYDROPHILIC GELS CONTAINING LACTIC ACID COMPLEXED WITH CHITOSAN
Abstract Commonly applied drug forms tend to leave the vagina when the patient assumes an upright position. Permanent contact of the drug form with the vaginal mucosa during daily activities of the patient is an indispen...
THE EFFECT OF PHYSICOCHEMICAL FACTORS ON ABSORPTION PROPERTIES OF CERTAIN SPASMOLYTICS IN THE PRESENCE OF DIETARY SUPPLEMENTS CONTAINING CHITOSAN
Chitosan is used in the treatment of obesity due to its lipid, cholesterol, fatty acids, triglycerides, bile acids binding capacity. A molecule of a cationic polymer, such as chitosan, is capable of binding acid drugs. T...
STUDIES ON ADSORPTION TIAMFENICOL ON CHITOSANS DEGRADED RADIATION IN PHARMACEUTICAL IN VITRO MODEL
Connections of polymers and biopolymers with biologically active compounds are recently the subject of intensive research. Low molecular weight active ingredient combined with a polymer has, in many cases, the modified a...
CHITOSAN/POLY(VINYL ALCOHOL) HYDROGELS AS CONTROLLED DRUG DELIVERY SYSTEMS
In order to achieve hydrogel and drug release profiles, a comprehensive knowledge of the types, properties and syntheses of hydrogel polymer networks are needed. For this reason, a natural biopolymer hydrogel based on ch...