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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 39 (1990), S. 427-433 
    ISSN: 1432-1041
    Keywords: Hypertension ; diltiazem ; metoprolol ; adverse effects ; multicentre study group
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary A double-blind, parallel-group multicentre study has been done to compare the antihypertensive properties, effects on serum lipoproteins and adverse effect profiles of diltiazem and metoprolol given as monotherapy to primary hypertensive patients. 128 patients were included from 10 participating centers. Following a placebo wash-out period of 5 weeks, patients were randomized either to diltiazem or metoprolol treatment according to a forced titration regimen. Each dose was given for a 4-week period in a stepwise regimen. A total of 119 patients, 59 and 60 in the two groups, completed the study. Supine and standing BPs were reduced in a similar, dose-dependent fashion by diltiazem and metoprolol. In the former supine BP fell from 161/101 to 151/91 mm Hg at the highest dose level. In the latter patients, supine BP at the highest dose level was reduced from 161/102 to 155/94 mm Hg. Target pressures (DBP ≤ 90 mm Hg and/or DBP reduction of ≥ 10%) were reached in 63% and 48% of the patients, respectively. HDL-cholesterol was increased in diltiazem-treated patients and decreased in those on metoprolol. Otherwise, serum lipoproteins did not differ significantly between treatments. The incidence and severity of dose-dependent adverse effects did not differ significantly between treatments, although moderate to distressing side effects were reported more commonly by metoprolol-treated patients. Ankle oedema and breathlessness tended to be more common on diltiazem therapy, while tiredness, increased sweating and sleep disturbances appeared to be experienced more frequently by metoprolol-treated patients. Thus, when given as monotherapy, the daily dose-ranges for a comperable reduction in BP were 120–360 mg diltiazem and 50–200 mg metoprolol. Within those dose-ranges, the antihypertensive efficacy and the overall incidence of adverse effects did not differ between the treatments. As monotherapies, diltiazem and metoprolol are both suitable for the management of mild to moderate hypertension.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 40 (1991), S. 453-460 
    ISSN: 1432-1041
    Keywords: Diltiazem ; metoprolol ; quality of life ; hypertension ; multicentre study ; adverse effects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary General well-being, adverse effects and antihypertensive efficacy have been investigated in a double blind, parallel-group, dose-response multicentre study of diltiazem and metoprolol monotherapy for hypertension. 128 patients with primary hypertension were included from 10 participating centres. The patients were randomized to receive oral diltiazem 120–240–360 mg/day or metoprolol 50–100–200 mg/day. Each dose was given for a 4-week period as a forced titration regime. In all 119 patients, 59 and 60, respectively, on diltiazem and metoprolol completed the study protocol. There were dose-dependent reductions in supine and standing blood pressures (BP) after both diltiazem and metoprolol therapy. In the diltiazem group, supine BP was reduced by 10 (11)/10 (6) mm Hg (SBP/DBP) at the highest dose level, and the corresponding values for the metoprolol group were 7 (16)/8 (9) mm Hg (SBP/DBP). Target pressures (DBP ≤ 90 mm Hg and/or a reduction in DBP of ≥ 10%) were reached in 63% and 48% of the patients, respectively. The incidence and severity of dose-dependent adverse effects, as evaluated by spontaneous reports or open and direct questioning, did not differ between treatments. Subjective well-being, evaluated by a self-administered questionnaire, the MSE-profile, did not differ significantly between diltiazem and metoprolol therapy. However, after an initial slight deterioration, contentment and vitality tended to improve with increasing doses of diltiazem, while a dose-related deterioration in these variables was observed on metoprolol therapy. At the highest dose levels, contentment and vitality tended to be better in the diltiazem than the metoprolol group. Thus, diltiazem and metoprolol in daily doses of 120–360 mg and 50–200 mg, respectively, produce comparable and parallel reductions in supine and standing BP. However, while subjective well-being tended to improve with increasing doses of diltiazem, there was a negative trend for metoprolol. It is concluded that diltiazem, given as monotherapy to hypertensive patients, does not impair subjective well-being.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1041
    Keywords: Diltiazem ; Angina pectoris ; controlled release formulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Two preparations of diltiazem, controlled release (CR) given twice a day (b.i.d.) and plain given 4 times a day (q.i.d.), were compared in a multicentre, double-blind, crossover study in 41 patients with stable angina pectoris. Therapeutic efficacy was assessed with maximal exercise tests, patient recordings on nitroglycerine consumption and angina attacks. No significant differences between the CR and plain tablets were seen in any of the efficacy variables. Maximal workload significantly increased from 127 W on placebo to 146 W on CR tablets and to 147 W on plain tablets. Anginal attacks/week significantly decreased from 11.7 on placebo to 4.9 on CR tablets and to 5.0 on plain tablets. Consumption of nitroglycerine tablets/week significantly decreased from 6.3 on placebo to 2.6 and to 3.4 on CR and plain-tablets, respectively. The number or the seriousness of the adverse events did not differ between the groups. The results imply that diltiazem CR b.i.d. is equally potent and safe as conventional diltiazem q.i.d. in the control of stable angina pectoris.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 4 (1971), S. 10-11 
    ISSN: 1432-1041
    Keywords: Monophasic action potential ; β-receptor blockade ; atrial flutter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The duration of right atrial monophasic action potentials during sinus rhythm in a young man with recurrent attacks of atrial flutter has been shown to be shorter than the corresponding values from an arrhythmia-free population. After intravenous injection of propranolol the duration increased, thus diminishing the probability of development of arrhythmia. This result might be due to reflex diminution of vagal discharges.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 47 (1994), S. 75-79 
    ISSN: 1432-1041
    Keywords: Diltiazem ; Angina pectoris ; controlled release formulation ; metoprolol ; bioavailability ; pharmacokinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Diltiazem CR tablets 120 mg b.i.d. for 1 week were compared with plain tablets 60 mg q.i.d. in 13 healthy male volunteers in a study of pharmcokinetic variables. Their antianginal efficacy was also compared in 23 patients with stable angina pectoris who were already on metoprolol. Both studies were of randomised, cross over design, and the clinical study was double blind. The pharmacokinetic variables of the two formulations were very similar except for the longer tmax of 4.4 h for diltiazem CR in comparison to 2.9 h for the plain tablets. The mean relative bioavailability of diltiazem CR in comparison with plain tablets was 1.14. The clinical study showed that after four weeks on diltiazem CR 120 mg b.i.d. or diltiazem plain tablets 60 mg q.i.d. in addition to metoprolol, there were significant decreases in weekly anginal attacks from 11 to 5 attacks/week, the number of nitroglycerin tablets consumed from 6 to 3 tablets/week, and an increase in the maximum workload from 116 to 126 and 123 W for diltiazem CR and plain diltiazem tablets, respectively, as compared to placebo. Five of the patients were angina free during diltiazem treatment. No difference in antianginal efficacy between the two preparations was seen. It was concluded that CR 120 mg b.i.d. appears bioequivalent to plain diltiazem tablets 60 mg q.i.d.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 5 (1973), S. 214-217 
    ISSN: 1432-1041
    Keywords: Pindolol ; beta-blockade ; oral administration ; man ; alprenolol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The duration of beta-receptor blockade after single oral doses of LB-46 has been investigated by the isoproterenol infusion technique. A single 5 mg dose of LB-46 caused beta-receptor blockade lasting for 45 min to about 15 h; the range of action after 10 mg LB-46 orally was 30 min to 24 h. The duration of action of an equipotent dose of alprenolol was shorter. The therapeutic implications of these results are discussed.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 53 (1988), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract The growth of 10 isolates of rhizosphere bacteria was compared in the rhizoplane (RP), rhizosphere (RS) and non-rhizosphere soil of a model system with rape seedlings growing in sterile sand. The colonization of the RP differed little among isolates. However, the bacterial isolates differed according to their degree of dependence on the root for growth, as judged by RS:RP and plant:non-plant ratios for CFU. These two ratios were correlated with changes in viability and ‘physiological status’ (as judged by γ values, Hattori, T. (1983) J. Gen. Appl. Microbiol. 29, 9–16).
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 601 (1990), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0305-0491
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Cryobiology 20 (1983), S. 407-420 
    ISSN: 0011-2240
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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