Abstract:
:1. The pharmacokinetics and pharmacodynamics of intranasal (IN) and oral 1-deamino-8-D-arginine vasopressin (DDAVP) were compared in 10 Chinese adults with central diabetes insipidus previously controlled on IN DDAVP. This was followed by comparison of the acute pharmacodynamics of commonly used oral preparations (containing 100, 200 and 400 micrograms per tablet) and a 1 year prospective evaluation of the long-term safety and efficacy of oral DDAVP. 2. Following 20 micrograms IN and 200 micrograms orally, respective plasma DDAVP concentrations peaked after 45.6 +/- 7.3 and 93.3 +/- 3.3 (mean +/- s.e.mean) min, reaching 24.1 +/- 4.7 and 15.1 +/- 3.2 pmol 1(-1) and respective terminal half-lives were 2.2 +/- 0.1 and 2.0 +/- 0.1 h. Based on the area under the concentration-time-curve, the bioequivalent IN/oral ratio was 1:16. 3. As judged by changes in urine flow rate and osmolality after IN or oral (100, 200 or 400 micrograms) DDAVP, antidiuretic activity increased rapidly during the second hour and peaked at 4 h. The antidiuresis duration and magnitude correlated with the oral dose (P < 0.001 and < 0.05 respectively), and was least following 100 micrograms (P < 0.01 vs 200 or 400 micrograms). Increasing the dose from 200 to 400 micrograms did not increase maximal antidiuretic activity significantly, but there was a trend towards a longer duration of action (P = 0.076). 4. During the 1-year prospective study with oral DDAVP 300-600 micrograms per day in two to three doses, stable and satisfactory antidiuresis (comparable with that on previous IN therapy) was maintained; tablets were well-tolerated and no side-effect warranted drug withdrawal. 5. These findings suggest that the 100 and 200 micrograms preparations of oral DDAVP are adequate for the long-term control of central diabetes insipidus in our population, and that the 400 micrograms preparation may have a role if the frequency of administration is to be reduced.
journal_name
Br J Clin Pharmacoljournal_title
British journal of clinical pharmacologyauthors
Lam KS,Wat MS,Choi KL,Ip TP,Pang RW,Kumana CRdoi
10.1046/j.1365-2125.1996.39914.xsubject
Has Abstractpub_date
1996-09-01 00:00:00pages
379-85issue
3eissn
0306-5251issn
1365-2125journal_volume
42pub_type
杂志文章abstract::1 A new osmotic pressure mediated delivery system for metoprolol (Lopresor Oros) has been evaluated by measuring the haemodynamic effects and pharmacokinetics after single and multiple oral dosing in young healthy volunteers. 2 Similar studies have been carried out in the same group using equivalent single and multipl...
journal_title:British journal of clinical pharmacology
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更新日期:1982-03-01 00:00:00
abstract:AIMS:To identify the cytochrome P450 (CYP) and UDP-glucuronosyltransferase (UGT) isoforms responsible for the formation of the primary metabolite(s) of zaltoprofen, and to predict possible drug interactions by investigating the inhibition of CYP isoforms in vitro. METHODS:The metabolism of zaltoprofen was studied in v...
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abstract:AIMS:BG00010 is a protein in the glial cell line-derived neurotrophic factor (GDNF) family. It is a selective ligand for the GDNF family receptor alpha-3 (GFRα3) co-receptor that normalizes cellular changes resulting from damage or disease, and potentially alleviates neuropathic pain. The main objectives of this study ...
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journal_title:British journal of clinical pharmacology
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pub_type: 临床试验,杂志文章,随机对照试验
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pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1987-01-01 00:00:00
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更新日期:2014-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1111/j.1365-2125.1976.tb04871.x
更新日期:1976-08-01 00:00:00
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pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:British journal of clinical pharmacology
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更新日期:1990-06-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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abstract:AIMS:A multistudy analysis of cediranib, a potent, selective inhibitor of all three vascular endothelial growth factor receptors (VEGFR-1, -2 and -3), was conducted to establish population exposure-safety models for the relationship of cediranib exposure to the safety endpoints, diastolic and systolic blood pressure (D...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
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更新日期:2018-04-01 00:00:00
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pub_type: 杂志文章
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