Document Detail

Dantrolene reconstitution: can warmed diluent make a difference?
MedLine Citation:
PMID:  16905078     Owner:  NLM     Status:  MEDLINE    
STUDY OBJECTIVE: To evaluate the drug constitution of dantrolene by comparing reconstitution with diluent at ambient and warmed temperatures, so as to determine whether differences in reconstitution time might provide clinical or therapeutic advantages. DESIGN: Randomized study. SETTING: University-affiliated medical center. MEASUREMENTS AND MAIN RESULTS: We reconstituted 10 vials of dantrolene, 5 with room-temperature diluent (sterile water) and 5 with diluent warmed to approximately 41 degrees C. Injection of diluent (10 seconds) was followed by 5 seconds of observation and recurring 15-second cycles (10 seconds of moderate manual agitation followed by 5 seconds of observation) until full reconstitution. In a second series of reconstitutions, warmed diluent injection was immediately followed by predetermined lengths of moderate manual agitation, and reconstitution status was noted at the end of each trial. Time to full reconstitution was based on a series of predetermined objective criteria. In experiment 1, with ambient-temperature diluent (22.0 degrees C -23.1 degrees C), reconstitution occurred in 90 to 130 seconds; whereas warmed diluent (40.7 degrees C-41.3 degrees C) reconstitution occurred in less than 30 seconds (P<0.004). In experiment 2, with warmed diluent (40.9 degrees C), full reconstitution occurred after 10 seconds of injection and 18 seconds of moderate manual agitation. CONCLUSION: The use of prewarmed diluent to 41 degrees C significantly reduces dantrolene reconstitution time. Further studies should evaluate the efficacy of dantrolene reconstituted with warmed diluent.
Sadeq A Quraishi; Frederick K Orkin; W Bosseau Murray
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Publication Detail:
Type:  Evaluation Studies; Journal Article    
Journal Detail:
Title:  Journal of clinical anesthesia     Volume:  18     ISSN:  0952-8180     ISO Abbreviation:  J Clin Anesth     Publication Date:  2006 Aug 
Date Detail:
Created Date:  2006-08-14     Completed Date:  2006-12-26     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8812166     Medline TA:  J Clin Anesth     Country:  United States    
Other Details:
Languages:  eng     Pagination:  339-42     Citation Subset:  IM    
Department of Anesthesiology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA.
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MeSH Terms
Dantrolene / chemistry*
Drug Compounding / methods*
Hot Temperature*
Muscle Relaxants, Central / chemistry*
Particulate Matter
Statistics, Nonparametric
Time Factors
Reg. No./Substance:
0/Muscle Relaxants, Central; 0/Particulate Matter; 7261-97-4/Dantrolene; 7732-18-5/Water

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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