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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1996-6-5
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pubmed:abstractText |
Dantrolene effectively treats malignant hyperthermia (MH) hut the current form, Dantrium, must be dissolved to a 0.33 mg/mL, pH 9.5 solution. This study describes lecithin-coated microcrystal formulations of sodium dantrolene (MC-NaD) and neutral dantrolene (MC-D) which reconstitute to 200 mg/mL within 1 min. In rats, the pharmacokinetics and pharmacodynamics of MC-NaD and Dantrium were similar: half-lives of 3.1 h, volume distributions of 0.54 and 0.59 L/kg, and 95% effective dose (ED95) values for depression of skeletal muscle twitch height (ED95T) of 2.6 +/- 0.7 and 2.8 +/- 0.5 mg/kg. In swine, the ED95T values for MC-NaD and Dantrium were also similar (2.8 +/- 0.4 vs 2.7 +/- 0.6 mg/kg), but MC-D and Dantrium were only similar at doses more than 2.5 mg/kg (ED95T: 3.5 +/- 0.4 vs 2.7 +/- 0.5 mg/kg). In susceptible swine, MC-NaD successfully treated five of six MH episodes and prevented MH in three of four swine. However, MC-NaD caused marked pulmonary hypertension in swine, while MC-D caused only a mild response that was eliminated by filtration. Likewise, MC-D caused no pulmonary response in dogs. These observations suggest that MC-D has potential to improve the treatment of MH.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0003-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
82
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
796-802
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pubmed:dateRevised |
2010-11-18
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pubmed:meshHeading |
pubmed-meshheading:8615500-Animals,
pubmed-meshheading:8615500-Crystallization,
pubmed-meshheading:8615500-Dantrolene,
pubmed-meshheading:8615500-Dogs,
pubmed-meshheading:8615500-Dose-Response Relationship, Drug,
pubmed-meshheading:8615500-Malignant Hyperthermia,
pubmed-meshheading:8615500-Pharmaceutical Vehicles,
pubmed-meshheading:8615500-Phosphatidylcholines,
pubmed-meshheading:8615500-Rats,
pubmed-meshheading:8615500-Swine
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pubmed:year |
1996
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pubmed:articleTitle |
Intravenous lecithin-coated microcrystals of dantrolene are effective in the treatment of malignant hyperthermia: an investigation in rats, dogs, and swine.
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pubmed:affiliation |
Department of Anesthesiology, F. Edward Herbert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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