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Current knowledge of the effects of aging on drug disposition is reviewed. Although definitive studies are not always available, based on present evidence it appears that: 1) drug absorption is not impaired in the elderly; 2) drug distribution in the elderly may be altered by significant changes in the lipid/lean body mass ratio; 3) Phase I (non-synthetic) biotransformation reactions of the liver appear to be much more profoundly affected by aging than are Phase II (synthetic) reactions; 4) age-related effects of biotransformation can be different even for compounds that are very similar and undergo the same types of reactions. Important parameters of drug metabolism are also discussed, such as the need to use total clearance, rather than half-life, in assessing pharmacokinetics.
D J Greenblatt, and
M Divoll, and
D R Abernethy, and
R I Shader
October 1982,
The New England journal of medicine,
D J Greenblatt, and
M Divoll, and
D R Abernethy, and
R I Shader
May 1982,
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D J Greenblatt, and
M Divoll, and
D R Abernethy, and
R I Shader
December 1978,
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D J Greenblatt, and
M Divoll, and
D R Abernethy, and
R I Shader
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D J Greenblatt, and
M Divoll, and
D R Abernethy, and
R I Shader
February 1963,
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D J Greenblatt, and
M Divoll, and
D R Abernethy, and
R I Shader
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D J Greenblatt, and
M Divoll, and
D R Abernethy, and
R I Shader
April 1975,
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D J Greenblatt, and
M Divoll, and
D R Abernethy, and
R I Shader
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D J Greenblatt, and
M Divoll, and
D R Abernethy, and
R I Shader
January 1976,
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D J Greenblatt, and
M Divoll, and
D R Abernethy, and
R I Shader
November 1996,
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