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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 28 (1985), S. 429-431 
    ISSN: 1432-1041
    Keywords: theophylline ; asthma ; personality measures ; pharmacokinetics ; volunteers ; patients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Thirteen volunteers received an iv dose of theophylline followed by blood sampling for 8 h to calculate pharmacokinetic parameters. Ten patients with asthma undergoing chronic dosing with slow release aminophylline underwent 12 h of blood sampling to calculate theophylline clearance. Both groups completed an Eysenck Personality Inventory (EPI) from which was derived scores for neuroticism (N) and extroversion (E). Using multiple regression analysis no independent effect of either N or E score on theophylline clearance or half-life could be demonstrated.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1041
    Keywords: Medifoxamine ; pharmacokinetics ; pharmacodynamics ; elderly volunteers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract The pharmacokinetics and psychomotor effects of medifoxamine, a 5 HT reuptake inhibitory antidepressant, were studied in healthy elderly volunteers after single and multiple dosing. The elimination half life (t1/2z) after single doses of 300 mg was 2.8 h — almost identical to that found in young volunteers. After seven days of dosing at 100 mg three times daily the mean corrected AUC after 300 mg significantly increased from 1.04 to 1.34 mg.h.l−1 and t1/2z increased to 4.0 h (NS). There were no significant changes in critical flicker fusion frequency, symbol digit substitution, continuous attention or choice reaction times.
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  • 3
    ISSN: 1432-1041
    Keywords: theophylline ; aminophylline ; slow release formulations ; bronchial asthma ; pharmacokinetics ; methods of comparison
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The pharmacokinetics of two slow release theophylline preparations “Theo-Dur” (T) containing theophylline only and “Phyllocontin” (P) containing aminophylline have been compared in 12 patients with asthma. Each patient received both treatments in random order. The dose of treatment administered 12 hourly was increased or decreased to produce plasma theophylline concentrations of 10–20 mg/l at clinic visits normally 7 to 8 h after dosing. Pharmacokinetic studies were carried out after at least one week's treatment with this dose. After the first study day patients were crossed over to the second treatment at a dosage providing a similar amount of theophylline. They returned for a second study day after at least one week. Comparison of the dose corrected AUC, time to peak concentrations, within patient coefficients of variation (CV), number of concentration time points falling within 25% of Cmax and percentage fluctuations in plasma concentration showed no significant differences between the two preparations.
    Type of Medium: Electronic Resource
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