Types of Mecury:


Ethylmercury(Thimerosal) is what is used as a preservative in vaccines, also fungicides, antibiotic eye drops, nasal sprays, ear preparations, some cosmetics and some contact lens solutions 
Other names for ethylmercury: 
Sodium ethylmercurithiosalicylate 
Ethyl (2-mercaptobenzoato-S) mercury sodium salt 
[(o-carboxyphenyl)thio] Ethylmercury sodium salt 
Dimethylmercury(pure) is a liquid that can be absorbed thru the skin. Elemental mercury or pure mercury=metal mixtures such as dental fillings-toxic when released into the environment, mercury thermometers, fluorescent light bulbs, exists in the earths crust. 
Methlymercury-Organic Mercury(mercuric salts) is the fish association and its environmental.  
Also used medically as fungicides and antibacterials 
Ionic Mercury-coal burning emmissions, formed in the atmosphere from elemntal mercury vapors




Synonyms and Trade Names for Thimerosal

Compiled by Melissa McCullough, Dana Farber Cancer Institute
Ethyl (2-mercaptobenzoato-S) mercury sodium salt
[(o-carboxyphenyl)thio] Ethylmercury sodium salt
o-(Ethylmercurithio)benzoic acid sodium salt
Elcide 75
Ethylmercurithiosalicyclic acid, sodium salt
Ethylmercurithiosalicylate sodium
Ethylmercurithiosalicylate sodium salt
Mercurate(1-), {ethyl[o-mercaptobenzoato(2-)]-,} sodium
Mercurate(1-), {ethyl[2-mercaptobenzoato(2-)-O,S]-,} sodium
Mercury, ethyl(hydrogen o-mercaptobenzoato)-, sodium salt
Mercury, ethyl(2-mercaptobenzoato-S)- sodium salt
Mercury {[(ocarboxyphenyl)thio]ethyl}-sodium salt
Merseptyl (VAN)
Merthiol ate®
Merthiolate salt
Merthiolate sodium
Merzonin sodium
Merzonin, sodium salt
Sodium ethylmercurithiosalicylate
Sodium ethylmercuric thiosalicylate
Sodium ethylmercurithiosalicylate
Sodium merthiolate
Sodium o-(ethylmercurithio)benzoate
Sodium salt of 2-(carboxyphenyl)thioethylmercury
Sodium 2-(ethylmercurithio)benzoate
Thimerosal solution
Thimerosol solution



Mercury Free-Is it Really Free?


Removal means that Thimerosal was used during the production process but was

Removed /filtered at a certain stage during production resulting in residual traces remaining in the vaccine.


Reduction of thimerosal means that it is still used but reduced in comparison with the amount in the already licensed vaccine.


Elimination means it is not used in any stage of production and considered truly Thimerosal-free.


In order to know what you are getting, you can ask to see the package insert and read thru the ingredients list first. However, mercury goes under different names and  the FDA allows vaccines to be labeled “mercury-free” even though they can still legally contain a certain amount of mercury, as mercury is actually part of the antiquated process of manufacturing vaccines, which has pretty much remain unchanged over 60 years.  Source





United States Environmental Protection Agency

Virtually every thimerosal vaccine administered during the 1990’s contained levels of mercury which were hundreds of times more toxic than hazardous waste according to the EPA’s website.


This is a federal law that applies to all states:

“If mercury levels in a waste exceed the Toxicity Characteristic Leach Test (TCLP) level of 0.2 mg/L for mercury, then the waste is identified as a hazardous waste based on the toxicity characteristic”.
Note that most vaccines administered during the 1990’s to infants (all children younger than two were subject to the mandatory vaccine schedule) contained levels of thimerosal consistent with those solutions being hundreds of times more toxic than hazardous waste according to the above set-forth EPA website.  Presently, flu vaccine contains 50 mg/l of mercury from the thimerosal preservative.  The concentration of mercury in the flu vaccine (containing thimerosal) presently being recommended to babies and pregnant women is  250 Times more toxic than the above level the EPA considers to be hazardous waste. 


 The biohazards of thimerosal are presented here: (sorry-url has been removed)


Consider these numbers:

0.5 parts per billion (ppb) mercury = Kills human neuroblastoma cells (Parran et al., Toxicol Sci 2005; 86: 132-140).

2 ppb mercury = U.S. EPA limit for drinking water. (

20 ppb mercury = Neurite membrane structure destroyed (Leong et al., Neuroreport 2001; 12: 733-37).

200 ppb mercury = level in liquid the EPA classifies as hazardous waste. (

25,000 ppb mercury = Concentration of mercury in multi-dose, Hepatitis B vaccine vials, administered at birth from 1991-2001 in the U.S.

50,000 ppb mercury = Concentration of mercury in multi-dose DTP and Haemophilus B vaccine vials, administered 8 times in the 1990’s to children at 2, 4, 6, 12 and 18 months of age. Current “preservative” level mercury in multi-dose flu, meningococcal and tetanus (7 and older) vaccines. This can be confirmed by simply analyzing the multi-dose vials.

Source: Michael Wagnitz has over 20 years experience evaluating materials for toxic metals. He currently works as a chemist in the toxicology section of a public health lab evaluating biological samples for lead and mercury.  

August 2002 – Mercury Products Guide: The Hidden Dangers of Mercury – A Resource Guide for Procurement Officers and Consumers about Mercury in Products and their Alternatives (pdf) – National Wildlife Federation  


The Mercury Vaccine Facts: 
A 0.1% solution of thimerosal is used. A 0.5 cc dose contains 25 mcg of mercury 
Water C.. 2 Parts per billion. 
Toxic Waste = 200 Parts per billion. 
EPA Allowable Fish = 700-1000 Parts per billion. 
0.5 cc Vaccine = 50,000 Parts per billion  
(—Dr. David Ayoub, M.D.) 




Engerix BTM [Glaxo Smithkline]

Recombivax BTM [Merck Frosst Canada])

have been available in Canada since these programs were initiated, containing thimerosal at a concentration of 0.005% or 50 µg/mL.  
A regular infant dose of 0.5 mL Engerix BTM contains 12.5 µg of ethylmercury, while a regular infant dose of 0.25 mL of Recombivax BTM contains 6.25 µg.  


Some single antigen acellular pertussis and conjugate H. influenzae vaccines, diphtheria-tetanus, and diphtheria- tetanus-acellular pertussis combination vaccines, all of which contain thimerosal in a concentration of 0.01%, and represent an exposure of 25 µg ethylmercury per 0.5 mL dose(11).  
Influenza vaccines that are licensed in Canada also contain 0.01% thimerosal.


-Health Canada


Types of Flu Vaccines

Proper Name: Influenza Virus Vaccine
Tradename: AFLURIA
CSL Limited, License No. 1764

Indication: For active immunization of adults 18 years of age and older against influenza disease caused by influenza virus subtypes A and type B present in the vaccine
Package insert 

Proper Name: Influenza Virus Vaccine, H5N1
Sanofi Pasteur Inc, License #1725

Indication: For active immunization of persons 18 through 64 years of age at increased risk of exposure to the H5N1 influenza virus subtype contained in the vaccine

Package Insert

Proper Name: Influenza Virus Vaccine
Tradename: FluLaval
Manufacturer: ID Biomedical Corporation of Quebec, License #1739

Package Insert

Proper Name: Influenza Virus Vaccine Live, Intranasal
Tradename: FluMist
MedImmune Vaccines, Inc, License #1652

Package Insert


Proper Name: Influenza Virus Vaccine
Tradename: Fluarix
GlaxoSmithKline Biologicals, License #1617

Package Insert

Proper Name: Influenza Virus Vaccine
Tradename: Fluvirin
Novartis Vaccines and Diagnostics Limited, License #1750

Package Insert 

Proper Name: Influenza Virus Vaccine
Tradename: Fluzone
Sanofi Pasteur, Inc, License #1725

Package Insert 

Thimerosal(mercury) Amounts:


Fluzone, a sterile suspension for intramuscular injection, is supplied in four presentations: 

  •  Prefilled syringe, 0.25 mL, no preservative, pediatric dose, distinguished by a pink syringe plunger rod
  •  Prefilled syringe, 0.5 mL, no preservative
  • Single-dose vial, 0.5 mL, no preservative
  •  Multi-dose vial, 5 mL, contains thimerosal, a mercury derivative, added as a preservative. Each 0.5 mL dose contains 25 μg mercury.


DOSAGE FORMS AND STRENGTHS FLUVIRIN®, a sterile suspension for intramuscular injection, is supplied in two presentations:

  •   Prefilled syringe, 0.5-mL. Thimerosal, a mercury derivative used during manufacture, is removed by subsequent purification steps to a trace amount (≤ 1 mcg mercury per 0.5-mL dose).
  •   Multidose vial, 5-mL. Contains thimerosal, a mercury derivative (25 mcg mercury per 0.5-mL dose). Thimerosal is added as a preservative.


AFLURIA®, a sterile suspension for intramuscular injection, is supplied in two presentations:


  •  0.5 mL preservative-free, single-dose, pre-filled syringe.
  •   5 mL multi-dose vial containing ten doses. Thimerosal, a mercury derivative, is added as a preservative; each 0.5 mL dose contains 24.5 micrograms (mcg) of mercury.

Flumist-intranasal and live:

  • 0.2 mL pre-filled, single-use intranasal spray (3) Each 0.2 mL dose contains 106.5-7.5 FFU (fluorescent focus units) of live attenuated influenza virus reassortants of each of the three strains for the 2008-2009 season: A/South Dakota/6/2007 (H1N1) (A/Brisbane/59/2007-like), A/Uruguay/716/2007 (H3N2) (A/Brisbane/10/2007-like), and B/Florida/4/2006.




  •   Thimerosal, a mercury derivative, is added as a preservative. Each 0.5 mL dose contains 25 mcg mercury.




  • Each 0.5 mL dose also contains octoxynol-10 (TRITON® X-100) ≤0.120 mg, α-tocopheryl hydrogen succinate ≤0.1 mg, and polysorbate 80 (Tween 80) ≤0.380 mg. The vaccine is formulated without preservatives.
  • Thimerosal is used at the early stages of manufacture and is removed by subsequent purification steps to a trace amount (≤1 mcg mercury per dose). Each dose may also contain residual amounts of hydrocortisone ≤0.0016 mcg, gentamicin sulfate ≤0.15 mcg, ovalbumin ≤1 mcg, formaldehyde ≤50 mcg, and sodium deoxycholate ≤50 mcg from the manufacturing process.