Lead in pharmaceutical products and dietary supplements. 2007

John F Kauffman, and Benjamin J Westenberger, and J David Robertson, and James Guthrie, and Abigail Jacobs, and Susan K Cummins
U.S. Food and Drug Administration, Center for Drug Evaluation and Research, Office of Pharmaceutical Sciences, Division of Pharmaceutical Analysis, 1114 Market St., St. Louis, MO 63101, USA. John.Kauffman@fda.hhs.gov

The objective of this study is to determine lead concentrations in a variety of widely used pharmaceutical products, and to assess the risk of lead exposure from using these products. Lead concentrations of 45 products were measured with inductively-coupled plasma mass spectrometry. Six products had lead concentrations greater than 100 parts per billion (ppb), and the highest measured concentration was 500 ppb. The average mass of lead delivered to consumers by all products examined in this study when taken as directed was 0.22 micrograms per day, which is expected to increase the blood lead level of an adult by less than 1%. Five products were found to deliver more than 1 microg of lead per day when used as directed. Current tolerable lead limits in pharmaceutical substances vary widely, and in some cases exceed 10,000 ppb. The products examined in this study have lead concentrations far below these levels. However, in light of recent research demonstrating adverse effects in both children and adults from low level lead exposure, current lead limits for pharmaceutical substances are unacceptably high. Uniform lead limits that reflect current manufacturing capabilities are needed to insure the lowest achievable exposure to lead from these products.

UI MeSH Term Description Entries
D007854 Lead A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.2, symbol Pb.
D008452 Maximum Allowable Concentration The maximum exposure to a biologically active physical or chemical agent that is allowed during an 8-hour period (a workday) in a population of workers, or during a 24-hour period in the general population, which does not appear to cause appreciable harm, whether immediate or delayed for any period, in the target population. (From Lewis Dictionary of Toxicology, 1st ed) Maximum Permissible Exposure Level,MPEL,Maximum Permissible Exposure Concentration,Allowable Concentration, Maximum,Allowable Concentrations, Maximum,Concentration, Maximum Allowable,Concentrations, Maximum Allowable,MPELs,Maximum Allowable Concentrations
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D003257 Consumer Product Safety The sum total of measures taken and regulatory policies enacted to ensure the safe use of consumer products. Safety, Consumer Product,Product Approval,Product Approvals,Product Safety, Consumer
D004340 Drug Contamination The presence of organisms, or any foreign material that makes a drug preparation impure. Drug Adulteration,Drug Contamination, Chemical,Drug Contamination, Microbial,Drug Contamination, Physical,Drug Impurity,Adulteration, Drug,Chemical Drug Contamination,Chemical Drug Contaminations,Contamination, Chemical Drug,Contamination, Drug,Contamination, Microbial Drug,Contamination, Physical Drug,Contaminations, Chemical Drug,Contaminations, Microbial Drug,Contaminations, Physical Drug,Drug Adulterations,Drug Contaminations,Drug Contaminations, Chemical,Drug Contaminations, Microbial,Drug Contaminations, Physical,Drug Impurities,Impurity, Drug,Microbial Drug Contamination,Microbial Drug Contaminations,Physical Drug Contamination,Physical Drug Contaminations
D005506 Food Contamination The presence in food of harmful, unpalatable, or otherwise objectionable foreign substances, e.g. chemicals, microorganisms or diluents, before, during, or after processing or storage. Food Adulteration,Adulteration, Food,Adulterations, Food,Contamination, Food,Contaminations, Food,Food Adulterations,Food Contaminations
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D013058 Mass Spectrometry An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers. Mass Spectroscopy,Spectrometry, Mass,Spectroscopy, Mass,Spectrum Analysis, Mass,Analysis, Mass Spectrum,Mass Spectrum Analysis,Analyses, Mass Spectrum,Mass Spectrum Analyses,Spectrum Analyses, Mass
D018570 Risk Assessment The qualitative or quantitative estimation of the likelihood of adverse effects that may result from exposure to specified health hazards or from the absence of beneficial influences. (Last, Dictionary of Epidemiology, 1988) Assessment, Risk,Benefit-Risk Assessment,Risk Analysis,Risk-Benefit Assessment,Health Risk Assessment,Risks and Benefits,Analysis, Risk,Assessment, Benefit-Risk,Assessment, Health Risk,Assessment, Risk-Benefit,Benefit Risk Assessment,Benefit-Risk Assessments,Benefits and Risks,Health Risk Assessments,Risk Analyses,Risk Assessment, Health,Risk Assessments,Risk Benefit Assessment,Risk-Benefit Assessments

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