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  • Electronic Resource  (2)
  • drug disposition  (1)
  • myocardial infarction  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Paracetamol pharmacokinetics in thyroid disease (1980)
    Springer
    European journal of clinical pharmacology 18 (1980), S. 269-273 
    Details
    ISSN: 1432-1041
    Keywords: paracetamol ; thyrotoxicosis ; hypothyroidism ; drug disposition ; pharmacokinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The absorption, distribution and elimination of oral paracetamol have been studied in patients before and after treatment of thyrotoxicosis (n=7) and hypothyroidism (n=4). Absorption was faster in patients with untreated thyrotoxicosis than when subsequently euthyroid. The peak paracetamol concentration, however, was lower in thyrotoxic patients due to an apparent increase in the total body clearance and a shorter plasma half-life. Both absorption and elimination rates were reduced in hypothyroid patients, but were not significantly different from the euthyroid results. When estimated using a two compartment model the total volume of distribution and the hybrid distribution rate constants were unrelated to thyroid status, but the apparent volume of the central compartment was significantly greater in the thyrotoxic group. These changes in drug disposition may contribute to differences in drug response seen in thyroid disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00563010
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The absorption of oral mexiletine in coronary care patients (1978)
    Springer
    European journal of clinical pharmacology 13 (1978), S. 393-399 
    Details
    ISSN: 1432-1041
    Keywords: Oral mexiletine ; plasma concentrations ; absorption ; myocardial infarction ; ventricular arrhythmias
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary In a preliminary study of mexiletine absorption in Coronary Care Unit patients with myocardial infarction, plasma mexiletine concentrations were significantly lower in those given narcotic analgesics. 166 patients then entered a comparative study of the effects of mexiletine and placebo on the incidence of ventricular arrhythmias after myocardial infarction (MI). Eighty-two patients were given mexiletine, 51 with MI. Mexiletine absorption was impaired in patients with MI and 66% failed to reach the minimum therapeutic plasma concentration of 1 µg/ml in 3 h. On the second and third hospital days, 34% and 25% respectively had subtherapeutic levels. In patients without MI, low plasma mexiletine concentrations were associated with the use of narcotic analgesics. The incidence of serious ventricular arrhythmias (VF, VT, R on T ectopic beats) was significantly lower in patients given mexiletine, and after 3 h most arrhythmias in this group occurred in patients with subtherapeutic mexiletine concentrations. Therapeutic failure of oral antiarrhythmic drugs soon after MI may be due to impaired absorption.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00566315
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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