ISSN:
1573-8744
Keywords:
deconvolution
;
deconvolution algorithm
;
deconvolution computer program
;
ibuprofen dosage forms
;
ibuprofenin vivo release
;
meanin vivo dissolution timeMDT
;
gastrointestinal bioavailability
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract A new deconvolution algorithm (DCON) suitable for pharmacokinetic applications is presented. It requires that both the impulse and input responses, typically systemic drug levels, be well described by polyexponential equations. DCON has a wider range of applications than an earlier method (DECONV) from which it is derived. A FORTRAN program is provided, making implementation of the technique a simple matter. DCON is demonstrated to evaluate the “GI bioavailability,” defined as the rate and the extent of gastrointestinal drug release, of various ibuprofen dosage forms. The GI drug release kinetics exemplifies a pharmacokinetic system which cannot be evaluated using the previous deconvolution algorithm (DECONV) because of an initial zero drug level response. This limitation is not found in DCON. It is also demonstrated how the mean in vivo dissolution time MDT can be evaluated by deconvolution.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01065657
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