Johannes Bonelli

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  • J Bonelli
  • International journal of clinical pharmacology…
  • 1978
The hemodynamic effect of a beta-receptor blockade with mepindolol--a noncardioselective beta-receptor blocker--was studied in 6 male test subjects age 25 to 30 years with an increasing dose of isoproterenol. The cardiac output per min, the heart rate and the stroke volume, the wet blood pressure and the contractility parameters dp/dt max in the right and(More)
Five clinically healthy, male volunteers were each given an intravenous dose of 1.19 mg of 2-methyl-14C-mepindolol sulphate, followed one week later by an oral dose of 20 mg. In addition, the effect of mepindolol sulphate was studied in 3 male test subjects after repeated oral administration for 8 days with a daily dose of 2 x 2.5 mg using the heart rate(More)
The aim of this study was to investigate the haemodynamics of the beta 1-selective beta-blocker bisoprolol at plasma concentrations that would be expected to block completely the cardiac beta-receptors. Seven patients with stable exercise-dependent angina pectoris received 40 mg bisoprolol, and six patients received 10 mg bisoprolol orally as a single dose.(More)
  • J Bonelli
  • International journal of clinical pharmacology…
  • 1984
The effect of isometric exercise on hemodynamic parameters before and after beta blockade were investigated in two groups of six male volunteers, ages 25-28 years. On the basis of a randomized scheme, the subjects received either 15 mg propranolol i.v. or 0.5 mg mepindolol sulfate i.v. Cardiac output (CO) was determined by means of the Swan-Ganz(More)
Two groups of seven healthy volunteers were treated for 9 days with either 0.3 mg beta-methyldigoxin or 0.4 mg beta-acetyldigoxin daily, applied orally. On the 10th day, digoxin concentrations in plasma and cerebrospinal fluid (CSF) were determined by radioimmunoassay. After therapy with beta-methyldigoxin the plasma/CSF digoxin concentration ratio was(More)
The pharmakokinetic data (elimination half-life, apparent distribution volume, total and renal clearance and cumulative urine excretion) were determined after intravenous administration of 1 mg digoxin in 9 female patients with an average age of 52 +/- 15 years with manifest hyperthyroidism. The study protocol was repeated after normalization of thyroid(More)
The effect of calculation stress on hemodynamic parameters and plasma adrenalin and noradrenalin was studied in two groups of 6 male subjects, before and duringβ-Blockade. One group received propranolol 15 mg i. v. and the other received mepindolol sulphate 0,5 mg i. v. There was an increase in heart rate, cardiac output and blood pressure during mental(More)
The hemodynamic effects of 20 mg Bufuralol-HCl and of 15 mg Propranolol given to hypertensives i.v. at rest and under physical exercise conditions were examined. It could be shown that Bufuralol-HCl lowered the diastolic BP and PR at rest already in the acute experiment, contrary to Propranolol. Under physical exercise conditions the diastolic BP is(More)
Guanfacine given intravenously causes a brief rise in blood pressure. This is followed by a sustained decrease of blood pressure, accompanied in one case by a marked orthostatic effect. In addition to its lowering effect on blood pressure, guanfacine also reduces heart rate. The duration of action for up to 72 h is due to the long half-life of the drug. The(More)