Relative bioavailability of chlorthalidone in humans: adverse influence of polyethylene glycol. 1982

R L Williams, and C D Blume, and E T Lin, and N H Holford, and L Z Benet

The bioavailability of two commercial preparations of chlorthalidone was studied in healthy male subjects. Reference solutions/suspensions for the two products were chlorthalidone dissolved in a solution of water-polyethylene glycol and a solution/suspension of chlorthalidone. Bioavailability of the chlorthalidone in water-polyethylene glycol solution was significantly reduced in comparison to one of the commercial preparations, and trends in the data suggested that it was less well absorbed than either the chlorthalidone in water solution/suspension or the other commercial preparation of chlorthalidone. These data, together with previous reports indicating that polyethylene glycol may retard the absorption of some drugs in vitro, suggest that this compound should not be used to aid dissolution of drug in a reference standard for bioavailability investigations.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008297 Male Males
D011092 Polyethylene Glycols Polymers of ETHYLENE OXIDE and water, and their ethers. They vary in consistency from liquid to solid depending on the molecular weight indicated by a number following the name. They are used as SURFACTANTS, dispersing agents, solvents, ointment and suppository bases, vehicles, and tablet excipients. Some specific groups are NONOXYNOLS, OCTOXYNOLS, and POLOXAMERS. Macrogols,Polyoxyethylenes,Carbowax,Macrogol,Polyethylene Glycol,Polyethylene Oxide,Polyethyleneoxide,Polyglycol,Glycol, Polyethylene,Glycols, Polyethylene,Oxide, Polyethylene,Oxides, Polyethylene,Polyethylene Oxides,Polyethyleneoxides,Polyglycols,Polyoxyethylene
D002752 Chlorthalidone A benzenesulfonamide-phthalimidine that tautomerizes to a BENZOPHENONES form. It is considered a thiazide-like diuretic. Chlorphthalidolone,Phthalamudine,Chlortalidone,Hygroton,Oxodoline,Thalitone
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001682 Biological Availability The extent to which the active ingredient of a drug dosage form becomes available at the site of drug action or in a biological medium believed to reflect accessibility to a site of action. Availability Equivalency,Bioavailability,Physiologic Availability,Availability, Biologic,Availability, Biological,Availability, Physiologic,Biologic Availability,Availabilities, Biologic,Availabilities, Biological,Availabilities, Physiologic,Availability Equivalencies,Bioavailabilities,Biologic Availabilities,Biological Availabilities,Equivalencies, Availability,Equivalency, Availability,Physiologic Availabilities
D013810 Therapeutic Equivalency The relative equivalency in the efficacy of different modes of treatment of a disease, most often used to compare the efficacy of different pharmaceuticals to treat a given disease. Bioequivalence,Clinical Equivalency,Equivalency, Therapeutic,Generic Equivalency,Clinical Equivalencies,Equivalencies, Clinical,Equivalencies, Therapeutic,Equivalency, Clinical,Therapeutic Equivalencies,Bioequivalences,Equivalencies, Generic,Equivalency, Generic,Generic Equivalencies

Related Publications

R L Williams, and C D Blume, and E T Lin, and N H Holford, and L Z Benet
September 1985, Journal of pharmaceutical sciences,
R L Williams, and C D Blume, and E T Lin, and N H Holford, and L Z Benet
January 1974, Journal of pharmaceutical sciences,
R L Williams, and C D Blume, and E T Lin, and N H Holford, and L Z Benet
September 1978, Journal of pharmaceutical sciences,
R L Williams, and C D Blume, and E T Lin, and N H Holford, and L Z Benet
January 1989, Biopharmaceutics & drug disposition,
R L Williams, and C D Blume, and E T Lin, and N H Holford, and L Z Benet
June 1992, The Journal of pharmacy and pharmacology,
R L Williams, and C D Blume, and E T Lin, and N H Holford, and L Z Benet
February 1986, The Journal of pharmacy and pharmacology,
R L Williams, and C D Blume, and E T Lin, and N H Holford, and L Z Benet
February 1998, Biochemistry and molecular biology international,
R L Williams, and C D Blume, and E T Lin, and N H Holford, and L Z Benet
January 1984, International journal of clinical pharmacology, therapy, and toxicology,
R L Williams, and C D Blume, and E T Lin, and N H Holford, and L Z Benet
January 1985, Epilepsia,
R L Williams, and C D Blume, and E T Lin, and N H Holford, and L Z Benet
January 1984, Pharmaceutica acta Helvetiae,
Copied contents to your clipboard!