Browsing by Author "Varagić, V.M. (7006591279)"

Sodium azide is a strong inhibitor of the tonic component of contraction produced by oxytocin, whereas aminophylline produces almost equal inhibition of all types of activation of the isolated rat uterus. Both substances inhibited the spontaneous rhythmic activity of the uterus. The effect of sodium azide is easily reversed by calcium. The results are taken to indicate a complex relation between calcium and substances which stimulate metabolism either of cGMP (sodium ***azide) or cAMP (aminophylline) in producing relaxation of the isolated rat uterus. 1985 Royal Pharmaceutical Society of Great Britain

[No abstract available]

[No abstract available]

The pharmacokinetics of theophylline was investigated in five hyperthyroid, five hypothyroid, and five euthyroid patients, all with chronic obstructive pulmonary disease. Wide individual variability was found in theophylline kinetics, but the rate of elimination of theophylline was significantly higher in hyperthyroid, and lower in hypothyroid patients than in the euthyroid patients (kel=0.155, 0.060 and 0.107 h-1, respectively). The values for clearance and volume of distribution were not consistently changed compared with those in the euthyroid group, although all the parameters except AUC were significantly different in hyperthyroid and hypothyroid patients. There was a positive correlation between both thyroxine and triiodothyronine serum concentrations and total body clearance of theophylline (r=0.795 and r=0.791, respectively). It is concluded that in spite of the wide interindividual variability and the relatively small differences in the pharmacokinetics of theophylline in thyroid dysfunction compared with the euthyroid status, these differences have to be considered in certain clinical situations, as they may require changes in the therapeutic regimen for administration of theophylline in hyperthyroid or hypothyroid patients. © 1987 Springer-Verlag.

The pharmacokinetics of theophylline was investigated in five hyperthyroid, five hypothyroid, and five euthyroid patients, all with chronic obstructive pulmonary disease. Wide individual variability was found in theophylline kinetics, but the rate of elimination of theophylline was significantly higher in hyperthyroid, and lower in hypothyroid patients than in the euthyroid patients (kel=0.155, 0.060 and 0.107 h-1, respectively). The values for clearance and volume of distribution were not consistently changed compared with those in the euthyroid group, although all the parameters except AUC were significantly different in hyperthyroid and hypothyroid patients. There was a positive correlation between both thyroxine and triiodothyronine serum concentrations and total body clearance of theophylline (r=0.795 and r=0.791, respectively). It is concluded that in spite of the wide interindividual variability and the relatively small differences in the pharmacokinetics of theophylline in thyroid dysfunction compared with the euthyroid status, these differences have to be considered in certain clinical situations, as they may require changes in the therapeutic regimen for administration of theophylline in hyperthyroid or hypothyroid patients. © 1987 Springer-Verlag.

[No abstract available]

[No abstract available]

The intravenous injection of physostigmine (70 μg kg1) produces a life-saving effect in acute haemorrhagic shock in non-anaesthetized rabbits. This effect is most probably due to a transfer of tissue fluids into circulation. The crucial beneficial effect of physostigmine might be a decrease of the capillary hydrostatic pressure due to changes in pre- to postcapillary resistance ratio. Both lines of defence comprise a normalization of blood pressure and normalization of blood volume, thus saving the life of the animal. © 1991.

The intravenous injection of physostigmine (70 μg kg1) produces a life-saving effect in acute haemorrhagic shock in non-anaesthetized rabbits. This effect is most probably due to a transfer of tissue fluids into circulation. The crucial beneficial effect of physostigmine might be a decrease of the capillary hydrostatic pressure due to changes in pre- to postcapillary resistance ratio. Both lines of defence comprise a normalization of blood pressure and normalization of blood volume, thus saving the life of the animal. © 1991.