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  • interaction  (2)
  • red blood cell rheology  (2)
  • theophylline  (2)
  • 1
    Electronic Resource
    Electronic Resource
    The effect of buffered aspirin on plasma indomethacin (1975)
    Springer
    European journal of clinical pharmacology 8 (1975), S. 107-113 
    Details
    ISSN: 1432-1041
    Keywords: Aspirin ; indomethacin ; plasma levels ; dissolution ; interaction ; toxicity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Plasma indomethacin levels have been compared in 10 subjects following 100 mg of indomethacin from two different formulations, with similar disintegration and dissolution profiles. In four of these ten subjects plasma indomethacin levels were estimated after pretreatment with, and concurrent administration of, a buffered aspirin. The percentage of protein binding of indomethacin in the presence of salicylate was also estimated. No significant differences between peak plasma indomethacin levels with or without buffered aspirin were detected, but the rate of indomethacin absorption as shown by plasma levels, was significantly increased by pretreatment with and concurrent administration of, buffered aspirin. This was associated with a marked increase in side effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00561558
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The relationship between theophylline clearance and age in adult life (1989)
    Springer
    European journal of clinical pharmacology 36 (1989), S. 29-34 
    Details
    ISSN: 1432-1041
    Keywords: theophylline ; asthma ; clearance ; age ; adults ; elderly ; normal subjects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Fifty three subjects (31 normal volunteers and 22 patients with asthma) between the ages of 20 and 87 years had their theophylline clearance measured. Volume of distribution (V) and terminal elimination half-life (t1/2) were also calculated in the volunteers who received i.v. theophylline. Although patients tended to have higher clearance values than volunteers, in both groups the oldest third had the lowest clearances. For the combined group (corrected for the patient effect) the oldest third (mean age 70 years) had a mean clearance of 0.53 versus 0.72 for the middle third (mean age 47 years) and 0.73 ml/min/kg CBW for the youngest third (mean age 26 years). There was no statistically significant age related change in V/kg CBW but t1/2 did rise with increasing age. Thus, although clearance does not fall with increasing age during younger adult life, there is a fall during late adult life becoming apparent in the seventh, eighth and ninth decades.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00561019
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Methods of comparing pharmacokinetics of slow release preparations: a comparison of “Theo-Dur” and “Phyllocontin” in patients with asthma (1986)
    Springer
    European journal of clinical pharmacology 30 (1986), S. 313-317 
    Details
    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
    URL: http://dx.doi.org/10.1007/BF00541535
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    A double blind trial of UK-38,485, an orally active thromboxane synthetase inhibitor, in the treatment of Raynaud's syndrome (1984)
    Springer
    European journal of clinical pharmacology 27 (1984), S. 61-65 
    Details
    ISSN: 1432-1041
    Keywords: thromboxane synthetase inhibitors ; Raynaud's syndrome ; systemic sclerosis ; UK-38,485 ; ischaemic attacks ; red blood cell rheology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Ten patients with moderate to severe Raynaud's syndrome were recruited into a four week randomised double blind crossover study to compare the efficacy of UK-38,485 50 mg, a new thromboxane synthetase inhibitor with that of placebo. With the doses used there was no significant difference between the two treatment periods in the number, severity and duration of ischaemic attacks, the mean hand temperatures, forearm and digital blood flow and red blood cell rheology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00553156
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    A double blind trial of UK-38,485, an orally active thromboxane synthetase inhibitor, in the treatment of Raynaud’s syndrome (1984)
    Springer
    European journal of clinical pharmacology 27 (1984), S. 61-65 
    Details
    ISSN: 1432-1041
    Keywords: thromboxane synthetase inhibitors ; Raynaud’s syndrome ; systemic sclerosis ; UK-38,485 ; ischaemic attacks ; red blood cell rheology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Ten patients with moderate to severe Raynaud’s syndrome were recruited into a four week randomised double blind crossover study to compare the efficacy of UK-38,485 50 mg, a new thromboxane synthetase inhibitor with that of placebo. With the doses used there was no significant difference between the two treatment periods in the number, severity and duration of ischaemic attacks, the mean hand temperatures, forearm and digital blood flow and red blood cell rheology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02395208
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    An examination of a possible pharmacokinetic interaction between nifedipine and antipyrine (1990)
    Springer
    European journal of clinical pharmacology 39 (1990), S. 405-407 
    Details
    ISSN: 1432-1041
    Keywords: Nifedipine ; antipyrine ; interaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The influence of 2 weeks oral intake of nifedipine (2×20 mg) on the oxidative metabolism of antipyrine was investigated in 12 normal volunteers, who had 1050 mg antipyrine solution orally before and after the course of nifedipine. There were no statistically significant differences in the saliva pharmacokinetic parameters of antipyrine on both occasions. However, the metabolite profile of antipyrine in urine showed a significant reduction in the amount of norantipyrine excreted after compared to that before nifedipine administration (16.5 vs 19.6%). This may have implications for drugs that share a similar demethylation pathway with norantipyrine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00315420
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    Paper (German National Licenses)
    Fulltext
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