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  • 1
    Electronic Resource
    Electronic Resource
    Pharmacokinetics and pharmacodynamics of propranolol stereoisomers in hyperthyroid patients (1981)
    Springer
    European journal of clinical pharmacology 19 (1981), S. 197-203 
    Details
    ISSN: 1432-1041
    Keywords: propranolol ; hyperthyroidism ; stereoisomers ; radioimmunoassay ; beta-receptor sensitivity ; pharmacokinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The disposition of propranolol stereoisomers after administration of a single oral dose of the racemic drug was investigated in seven hyperthyroid patients before and after antithyroid drug therapy. The possibility of hypersensitivity to propranolol in the patients was evaluated by constructing plasma propranolol concentration — beta-blocking effect curves. There was no statistically significant difference in elimination half-life (t1/2) between (±)- and (−)-propranolol before and after antithyroid drug therapy. However, the plasma clearance ( $$\dot V_p $$ ) of (−)-propranolol was smaller than that of (±)-propranolol, and the difference was statistically significant after antithyroid drug therapy. Decreased $$\dot V_p $$ was observed in 3 aged hyperthyroid patients compared to the value after antithyroid drug therapy. $$\dot V_p $$ decreased or did not change in young patients after therapy. No significant difference was observed in the relationship between the tilt-induced pulse rate response and plasma propranolol concentration when treated patients became euthyroid compared to their response in the hyperthyroid state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00561949
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Clinical pharmacology of a new β-adrenoceptor blocking drug, befunolol (1982)
    Springer
    European journal of clinical pharmacology 23 (1982), S. 189-195 
    Details
    ISSN: 1432-1041
    Keywords: befunolol ; propranolol ; pharmacokinetics ; pharmacodynamic effects ; beta-adrenoceptor blocking agent
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Repeated doses of a new β-adrenoceptor blocking agent, befunolol, were administered orally to adult male volunteers for a cross-over comparison with propranolol. The β-adrenoceptor blocking activity of befunolol was greater than that of propranolol when assessed by the percentage reduction in exercise-induced tachycardia. The elimination half-life of drug was significantly prolonged on repeated administration of propranolol, but not of befunolol. The percentage reduction in exercise-induced tachycardia was highly correlated with the log plasma level of each drug. Both drugs produced a significant reduction in pre-exercise systolic and diastolic blood pressure, and significant attenuation of exercise-induced rise in systolic blood pressure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00547552
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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