Methylparaben concentration in commercial Brazilian local anesthetics solutions
J. appl. oral sci
;
20(4): 444-448, July-Aug. 2012. ilus
Article
in English
| LILACS
| ID: lil-650621
ABSTRACT
OBJECTIVE:
To detect the presence and concentration of methylparaben in cartridges of commercial Brazilian local anesthetics. MATERIAL ANDMETHODS:
Twelve commercial brands (4 in glass and 8 in plastic cartridges) of local anesthetic solutions for use in dentistry were purchased from the Brazilian market and analyzed. Different lots of the commercial brands were obtained in different Brazilian cities (Piracicaba, Campinas and São Paulo). Separation was performed using high performance liquid chromatography (HPLC) with UV-Vis detector. The mobile phase used was acetonitrilewater (7525 - v/v), pH 4.5, adjusted with acetic acid at a flow rate of 1.0 ml.min-1.RESULTS:
When detected in the solutions, the methylparaben concentration ranged from 0.01% (m/v) to 0.16% (m/v). One glass and all plastic cartridges presented methylparaben.CONCLUSION:
1. Methylparaben concentration varied among solutions from different manufacturers, and it was not indicated in the drug package inserts; 2. Since the presence of methylparaben in dental anesthetics is not regulated by the Brazilian National Health Surveillance Agency (ANVISA) and this substance could cause allergic reactions, it is important to alert dentists about its possible presence.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Parabens
/
Preservatives, Pharmaceutical
/
Anesthetics, Local
Type of study:
Etiology study
Limits:
Humans
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
J. appl. oral sci
Journal subject:
Dentistry
Year:
2012
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
São Leopoldo Mandic Dental School/BR
/
University of Campinas/BR
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