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4 Ιουλίου 2022, 14:34:30

Αποστολέας Θέμα: Amlodipine versus Nitrendipine.  (Αναγνώστηκε 3835 φορές)

0 μέλη και 1 επισκέπτης διαβάζουν αυτό το θέμα.

31 Ιανουαρίου 2014, 09:54:26
Αναγνώστηκε 3835 φορές
Αποσυνδεδεμένος

Argirios Argiriou

Moderator
Amlodipine versus Nitrendipine.
Before ordering a test decide what you will do if it is (1) positive, or (2) negative. If both answers are the same, don't do the test. Archie Cochrane.

31 Ιανουαρίου 2014, 09:57:09
Απάντηση #1
Αποσυνδεδεμένος

Argirios Argiriou

Moderator
Cardiology. 1992;80 Suppl 1:46-53.

Amlodipine compared to nitrendipine in hypertensive patients: the effects on toleration in relationship to the onset of action.

Waeber B, Borges ET, Christeler P, Guillaume-Gentil M, Hollenstein U, Mannhart M.

Abstract

Amlodipine and nitrendipine are calcium antagonists of the 1,4-dihydropyridine group which differ in their pharmacokinetic and pharmacodynamic properties. The clinical relevance of these differences was investigated in a study designed to compare the efficacy and safety of once-daily amlodipine (5 mg) and nitrendipine (20 mg) in patients with mild-to-moderate essential hypertension. Ambulatory blood pressure monitoring and conventional measurements showed that amlodipine and nitrendipine produced comparable reductions in blood pressure after 4 weeks of treatment. However, the onset of the antihypertensive effect was gradual for amlodipine, while most of the reduction achieved at the end of treatment with nitrendipine was seen after the first dose. There were no significant changes in heart rate with amlodipine, but significant increases occurred during the first 6 h of nitrendipine treatment. Amlodipine was associated with a significantly lower incidence of vasodilator-related adverse effects at initiation of therapy (headache, flushing, tachycardia) compared with nitrendipine, which may reflect its slower onset of action. The different pharmacodynamic and toleration profiles of amlodipine and nitrendipine at therapeutically equivalent doses suggest that amlodipine may have advantages in the treatment of hypertension, especially in terms of the low incidence of acute side effects, which may ultimately translate into improved patient compliance.

Δεν είναι ορατοί οι σύνδεσμοι (links). Εγγραφή ή Είσοδος
Before ordering a test decide what you will do if it is (1) positive, or (2) negative. If both answers are the same, don't do the test. Archie Cochrane.

31 Ιανουαρίου 2014, 14:33:43
Απάντηση #2
Αποσυνδεδεμένος

Argirios Argiriou

Moderator
J Hypertens Suppl. 1998 Sep;16(4):S43-7.
Parallel comparative trial of amlodipine and nitrendipine monotherapy in patients with essential hypertension.
Wang X, Gong L, Guo J, Wang X, Liu Y, Ye X, Zhang G, Yang P.


Abstract

OBJECTIVES:

To compare the blood pressure effects of two dihydropyridine calcium channel blockers, amlodipine and nitrendipine, in 488 patients with essential hypertension.
METHODS:

The study used a randomized, single-blind design of 4 weeks' duration conducted at four medical centres in China. Patients were randomized to receive either amlodipine monotherapy (5-10 mg once daily; n = 334) or nitrendipine (10 mg twice or three times daily; n = 1 54). Blood pressure was evaluated by standard blood pressure measurements before and after treatment, and by 24 h ambulatory blood pressure monitoring in a subgroup of patients (n = 18).
RESULTS:

Both systolic and diastolic blood pressures were reduced from baseline after 4 weeks of amlodipine and nitrendipine monotherapy. Diastolic blood pressure was reduced by 14.4% in the amlodipine group, which was significantly better than the 13.0% reduction in the nitrendipine group (P< 0.05). In addition, blood pressure response rates were significantly better with amlodipine monotherapy than with nitrendipine monotherapy. In the subgroup of patients undergoing 24 h ambulatory blood pressure monitoring, both systolic and diastolic blood pressure were reduced from baseline in the amlodipine and nitrendipine groups. Adverse effects were generally mild, with dizziness, flushing, palpitation, headache, drowsiness and ankle oedema being the most common. Rushing and headache were more frequent in the nitrendipine group than in the amlodipine group (P< 0.05 for flushing and P<0.01 for headache).

CONCLUSIONS:

Amlodipine monotherapy reduced blood pressure more effectively than nitrendipine monotherapy in patients with essential hypertension and was associated with fewer adverse events.

Δεν είναι ορατοί οι σύνδεσμοι (links). Εγγραφή ή Είσοδος
Before ordering a test decide what you will do if it is (1) positive, or (2) negative. If both answers are the same, don't do the test. Archie Cochrane.

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