Thimerosal information sheet alberta health services. Route of decomposition of thiomersal thimerosal request pdf. Thimerosal thimerosal thiomersal, merthiolate, mercurochromo, or ethylmercurithiosalicylate is a hgcontaining pharmaceutical compound often used in vaccines, and composed of approximately 50%. When thimerosal is used this way, it is removed later in the process. Developed in the 1920s, thimerosal subsequently became widely used as a preservative in antiseptic ointments, eye drops, nasal sprays, and vaccines. This compound is a wellestablished antiseptic and antifungal agent the pharmaceutical corporation eli lilly and company gave thiomersal the trade name merthiolate. Luz fonacier, mark boguniewicz, in pediatric allergy. Merthiolate, sodium ethylmercurithiosalicylate type of. Institute for vaccine safety thimerosal table updated 10. Cdc study on prenatal and infant exposure to thimerosal.
Association between thimerosalcontaining vaccine and autism. To assess the possible toxicity of thimerosal containing vaccines tcvs among infants. Thimerosal use in third world mercury 2006 and most vaccines are supposedly mercury free, yet in the third world they continue to use them. Thimerosal is an ethylmercurycontaining preservative in vaccines. Mercury in sufficient dose is neurotoxic, and probably more toxic in the. Institute for vaccine safety thimerosal table updated 101607. Patient information thiomersal your true test indicates that you have a contact allergy to thiomersal. No harmful effects were reported from thimerosal at doses used in vaccines, except for minor local reactions like redness and swelling at the injection site. Thimerosal in vaccines some people are concerned about the use of thimerosal, a mercurycontaining preservative, in vaccines. This product should be considered equivalent to thimerosal.
The use of thimerosal preservative in vaccines thimerosal is a mercurycontaining preservative that has been used for decades in the united states to prevent contamination in some vaccines. Thimerosal in vaccines except as noted in italics below, this information is abridged from the united states centers for disease control and prevention cdc websites. There is no evidence of harm caused by the low doses of thimerosal in vaccines, except for minor reactions like redness and swelling at the injection site. Thimerosal has been used as a preservative in vaccines since the 1930s. Thimerosal is a 10 letter word, used as a noun, and has the letters aehilmorst aehilmorst. Thimerosal is an alkylmercury compound approximately 49% mercury by weight used as an antiseptic and antifungal agent. Thimerosal and autism, technical report, volume ii cdcpdf pdf 152 pages external additionally, cdc is making it possible for other researchers to learn from this study data. This vaccine may contain trace amounts pdf delivering 20 vaccines by 14 weeks containing 187. Mark geier has been an expert witness and consultant in cases in involving. Early thimerosal exposure and neuropsychological outcomes at. Thiomersal or thimerosal is a mercury compound used as a preservative used in some vaccines. Institute for vaccine safety thimerosal table updated 62408. Thimerosal was previously present in various eye preparations and contact lens solutions and has been proven to cause delayed hypersensitivity reactions resulting in conjunctivitis and eyelid dermatitis.
It has a role as a disinfectant, an antifungal drug and an antiseptic drug. This is the second time a judge has tossed out a case. A mercurycontaining preservative used in some vaccines and other products since the 1930s. For two childhood vaccines, thimerosal is used to prevent the growth of microbes during the manufacturing process. This study was designed to examine relationships between prenatal and infant ethylmercury exposure from thimerosal containing vaccines andor immunoglobulin preparations and. Thimerosal cases in oregon dismissed american academy of. Exposure to thimerosal, a mercurycontaining preservative that is used in vaccines and immunoglobulin preparations, has been hypothesized to be associated with increased risk of autism spectrum disorder asd. Thiomersal is an antiseptic and a preservative also known as thimerosal. This product should be considered equivalent to thimerosal free products. It clarifies that injuries alleged to have been caused by thimerosal are subject to the national vaccine injury compensation program and must first be adjudicated through that program. Learn more about the uses and action of thimerosal. Patient information thiomersal amazon web services.
Institute for vaccine safety thimerosal table updated 6. Thimerosal quickly decomposes in aqueous saline solutions into ethylhg hydroxide and ethylhg chloride. It is not the same as methylmercury which enters the body by eating contaminated fish e. There was specifically no evidence that thimerosal increases the risk of developing autism or any other behavior disorder. Starts with t, ends with l, six consonants, four vowels and four syllables. It breaks down to ethylmercury, which quickly leaves the body through the stool. This vaccine may contain trace amounts thimerosal or thiomersal is a trade name for an organomercurial compound sodium ethylmercury hg thiosalicylate, c 9 h 9 hgnao 2 s that is 49. A twophased population epidemiological study of the safety of thimerosalcontaining vaccines. Preservatives prevent the growth of bacteria and fungi in the event that they get into the vaccine. This vaccine may contain trace amounts word download thimerosal. When the volume of vaccines given to children in the u. Therefore, vaccination with thimerosalpreservative containing influenza vaccine and thimerosalreduced influenza vaccine is encouraged when feasible in children, including those that are 623.
Thimerosal is a vaccine preservative comprised of ethyl mercury. Thimerosal in vaccines thimerosal concerns vaccine. The birth dates of the maddsp sampling, between 1986 and 1994, yielded a unique opportunity for comparison, given the rise in thimerosal exposure starting in the early 1990s with the addition of the hepatitis b and haemophilus influenza type b hib vaccine series to the cdcs infant vaccination schedule. The same vaccine was reformulated without thimerosal and used until january 1, 1997, when it was replaced with an acellular pertussis vaccine. A truly thimerosal free influenza vaccine formulated in pfss is produced for use in infants and children. Prenatal and infant exposure to thimerosal from vaccines and. This vaccine may contain trace amounts thimerosal definition is a crystalline organic mercurial antiseptic c9h9hgnao2s used especially for its antifungal and bacteriostatic properties. Therefore, vaccination with thimerosal preservative containing influenza vaccine and thimerosal reduced influenza vaccine is encouraged when feasible in children, including those that are 623. Word lists are in the order of the most common words and most searched. Because of power considerations, we decided a priori to perform an evaluation only of the cumulative effect of thimerosal exposure on the risk of outcomes with at least 50 or more cases. Thimerosal is a mercurybased preservative that has been used for decades in the united states in multidose vials vials containing more than one dose of medicines and vaccines. Understanding thimerosal, mercury, and vaccine safety.
Paul offit writes that the alarm caused by the removal of thim. Thimerosal from thimerosalcontaining vaccines administered in the. Toxicokinetic studies have shown children received doses of mercury from thimerosalcontaining vaccines tcvs that were in excess of safety guidelines. This vaccine may contain trace amounts thimerosal removal. Who document 2001 pdf delivering 20 vaccines by 14 weeks containing 187. Thimerosal, mercurycontaining organic compound with antimicrobial and preservative properties. Thimerosal is also used as a preservative in vaccines, antitoxins, parenteral medications and preparation of antigens for allergy tests. Concern has been expressed over the possibility that the mercurycontaining compound thimerosal in vaccines may cause autism.
Vaccination policy however, injected flu vaccines may contain thimerosal, a mercurycontaining preservative, which many doctors believe is safe but others believe may be responsible for effects on the brain and. Institute for vaccine safety thimerosal content in some us. Thiomersal, or thimerosal usan, jan, is an organomercury compound. Thimerosal is a mercuric derivative of thiosalicylic acid used as a preservative in vaccines, cosmetics, tattoo inks, eye drops and contact lens solutions as well as a disinfectant e. Thiomersal also spelled thimerosal, especially in the united states is an organomercury compound used as a preservative in vaccines to prevent bacterial and fungal contamination. A 2phased retrospective cohort study was conducted using computerized health maintenance organization hmo databases. Antivaccination activists promoting the incorrect claim that vaccination causes autism have asserted that the mercury in thiomersal is the cause. Other notes keep container tightly closed in a dry and wellventilated place. Thimerosal is added to vials of vaccine that contain more than one dose multidose vials to prevent growth of germs, like bacteria and fungi. Thimerosal in vaccines thimerosal concerns vaccine safety. The only childhood vaccines today that have trace amounts of thimerosal are one dtap and one dtaphib combination vaccine.
Bei 35 micrograms total inorganic mercury per gram of creatinine. Searching two syllable words with qu in the middle, ab in the center. The idea that thiomersal in vaccines might have detrimental effects originated with anti. Word unscambler has been renamed and will be altered to a complete anagram solver. Figure1 an oregon judge has dismissed most of the class action lawsuits filed in that state alleging injury from thimerosal in vaccines, including the case that named not only manufacturers, but also a pediatrician.
On july 9, 1999, the cdc and the american academy of pediatrics asked pharmaceutical companies to remove thimerosal from vaccines. Thiomersal in contact with your skin may result in dermatitis. Thimerosal definition of thimerosal by the free dictionary. The centers of disease control cdc and the fda insists that thimerosal is safe when used in doses found in vaccines. Introduction of bacteria and fungi has the potential to occur when a syringe needle enters a vial as a vaccine is being prepared for administration. Thimerosal article about thimerosal by the free dictionary. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. A truly thimerosalfree influenza vaccine formulated in pfss is produced for use in infants and children.
Identification of the substancemixture and of the companyundertaking 1. Phase i screened for associations between neurodevelopmental disorders and thimerosal exposure among 124 170 infants who were born during 1992 to 1999 at 2 hmos a and b. Food and drug administration is the chief federal government agency responsible for regulating vaccines in the u. Thiomersal material safety data sheet cas no 54648 sdsmsds. Truth about thimerosal in vaccines the peoples chemist. Data sources include ibm watson micromedex updated 4 may 2020, cerner multum updated 4 may 2020, wolters kluwer updated. Syllable counter is now available for text and documents. There is no scientific evidence to support this claim. Thimerosal is used as a preservative in some vaccines. Brief or occasional contact may not pose a problem. A public use data set is also available for researchers to analyze upon request. Jan 01, 2003 in the last days of the 107th congress, a thimerosal liability protection provision was anonymously slipped into the homeland security act at the last minute. For the record, thimerosal is not the only ingredient that worries those of us with autistic children. Thimerosal no known occupational exposure limits established.
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