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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 14 (1978), S. 231-235 
    ISSN: 1432-1041
    Keywords: Clonidine ; tiamenidine ; salivary flow ; blood pressure ; sedation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary An established method for collecting uncontaminated parotid saliva has been applied to assessment of salivary flow rate. Following single doses of 0.3 mg clonidine and 1.0 mg tiamenidine (HOE 440) changes in blood pressure, heart rate, sedation (assessed by a self-rating scale) and salivary flow were followed in nine normal subjects. Both drugs produced a fall in systolic and diastolic blood pressure, sedation, depression of salivary flow and a lowering of heart rate. These changes were maximal between 2 and 6 h and were more marked after clonidine than after timenidine. As tiamenidine 1.0 mg did not produce a hypotensive effect equivalent to clonidine 0.3 mg direct comparison of side-effects attributable to these agents proved difficult. The evidence suggests, however, that tiamenidine would cause sedation and reduction in salivary flow comparable to clonidine if given in an equivalent hypotensive dose.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 17 (1980), S. 371-374 
    ISSN: 1432-1041
    Keywords: methotrexate ; renal clearance ; nonlinear pharmacokinetics ; methotrexate-RIA ; patients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The pharmacokinetics of methotrexate have been assessed at two dose levels in six patients recciving the drug for treatment of malignant disease. Each patient received bolus intravenous doses of 25 mg and 100 mg given at least one week apart, the order of administration being random. Blood and urine were collected until 48 h for methotrexate analysis by radioimmunoassay and data analysed by a model-independent pharmacokinetic approach. In each patient area under the methotrexate serum concentration-time curve (o to ∞) increased out of proportion to the increase in methotrexate dose. This was reflected in a mean clearance value after the 100 mg dose of 31±16 (SD) ml · min−1 compared with a mean clearance of 62±19 ml · min−1 following injection of 25 mg methotrexate. Renal clearance of methotrexate was markedly lower following the 100 mg dose (18±6 ml · min−1) than after 25 mg (53±19 ml · min−1). Saturation of the proximal tubular organic acid transport system is the likely cause of methotrexate's capacity limited elimination.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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