Skeptical Raptor's Blog hunting pseudoscience in the internet jungle

Vaccine package inserts–debunking the myths

©New York Times, 2013

©New York Times, 2013

Updated and revised article originally published on 24 April, 2013. 

One of the cherished strategies of the vaccine deniers is to use the package insert (called a Patient Information Leaflet in EU countries and Instructions for Use in the case of medical devices) to “prove” that vaccines are dangerous. Spend anything more than a couple of minutes in discussion with an anti-vaccinationist, and you’ll get a reference to a particular vaccine’s package insert (PI) as “proof” that it is dangerous, contains dangerous stuff, or is just plain scary. 

There are a lot of myths about what PI’s are and aren’t, and what information in them may or may not be useful. It’s time to look at what a PI is and what it really says.

What is a Package Insert?

All of you have probably seen a package insert–it’s a multiple page document that is included with all real medications (as opposed to unregulated alternative medicine), whether prescription or over-the-counter (OTC). Depending on the type of drug, the PI can be 30-40 pages long, although most are printed on one huge sheet of very thin paper, so that it can be folded tightly and placed in each box that over-packages the drugs container (vial, bottle, etc). 

In general, package inserts are part of what is called the “labeling” of the drug, which means all the verbiage that pharmaceutical company may say about the drug. It is not just the printing on the vial or box, the word encompasses almost everything said about the drug, including advertising, PI’s, and yes, the box and printing on vial.

You will hear FDA regulators and individuals in pharmaceutical companies refer to “labeling” all of the time. Labeling is strictly regulated, because it establishes the claims made about the drug or device, how it is to be used, and other pertinent information. Even what sales reps say to physicians in a sales call is covered by the drug’s labeling.

In the USA, the Food and Drug Administration has established very strict rules in the Code of Federal Regulations (CFR) on what can be and cannot be stated in the package insert. There is very little variance in format or quality of information from one PI to another one even for very different classes of drugs. Amusingly, the regulations even state the type and size of font used in the PI. 

Before we discuss what is actually contained in a PI, it’s important to understand how it is written by the pharmaceutical company’s medical staff, and subsequently reviewed (and hopefully cleared) by the FDA. During the Phase 1, 2 and 3 clinical trials for a new drug, scientific information is collected about the drug–everything from the pharmacology to shelf life to results of the trials. The Medical or Regulatory Departments (both or individually) of the pharmaceutical company then writes the PI, using the boilerplate language established by the FDA (or other regulatory agencies such as those from Japan or Europe). Note that there is a lot of consistency between all drug regulatory agencies for what is in the PI, so that it is similar across the world. You are not going to find better information in a European PI, though you’ll get to see the Latvian translation of the PI if that thrills you. In today’s world, part of the purpose of a PI is to protect the pharmaceutical company from legal issues. If the PI says “do not prescribe this drug to someone who abuses alcohol”, and a physician prescribes it to that type of patient, then the company has some protection from litigation. 

After the Medical and/or Regulatory departments complete the initial draft of the PI, it is usually passed through different departments of the company for further review, correction and approval. For example, the manufacturing department may not agree with a statement about how the drug or device is manufactured, and it is corrected. Depending on the company up to 10-12 departments may review a single PI, and it could take a few weeks before this process is completed to everyone’s satisfaction.

The draft PI is then included with the New Drug Application (NDA) which is the system in the United States through which drug company formally propose to the Food and Drug Administration (FDA) that they review and approve a new pharmaceutical for sale and marketing. The FDA reviews the whole application, including all labeling (in addition to the PI), before determining if it will be approved. The FDA often requests changes to all labeling depending if they agree or disagree on statements. Many times a pharmaceutical company will attempt to add indications, that is the valid reason to use a medication, but the FDA will reject it until more data is accumulated.

PI’s are not static documents. Pharmaceutical companies may add more information, warnings, indications (or contraindications, meaning uses that may harm the patient if used in particular situations), and other information that can be supported by evidence from scientific investigations. Of course, the pharmaceutical company must resubmit its labeling (including the PI) to the FDA for approval of the changes. The FDA spends a lot of time reviewing pharmaceutical labeling, because it has the most direct impact on patients’ health–although not a critical issue with vaccines, contraindications and drug interactions are very important to pharmacists and physicians.

What does a Package Insert actually say?

Again, the FDA (and other regulatory agencies) have established regulations on what must be written in the PI. Essentially, every PI must include the following:

  • Highlights–summarizes the most important information about benefits and risks.
  • Table of contents–because there’s a lot of information there.
  • Boxed Warning (pdf, page 11)–this is usually a large black box in bold print that describes a serious warning about the drug. For example, a drug that might kill someone if used incorrectly in specific situations. Usually, the FDA mandates this for very serious adverse events. Note that I have been unable to find a single Boxed Warning on a vaccine PI. None. When the FDA mandates a “black box warning,” it is done publicly. Physicians who prescribe the drug receive receive letters about the warning. The FDA and the pharmaceutical company publicly announce the warning and its contents.
  • Date of US approval.
  • Description–this section describes the drug in detail including all of its ingredients.
  • Clinical pharmacology–this section describes how the medicine works in the body, how it is absorbed and eliminated, and what its effects are likely to be at various concentrations, critical dose-response relationships (that is, does more of the drug have more of an effect, a fundamental piece of information about how the drug works). This section may also contain results of various clinical trials (studies), explanations of the medication’s effect on various populations, such as children and pregnant women, and other scientific information.
  • Indications and usage–this section describes the uses and indications for which the drug has been cleared by the FDA. Importantly, physicians are legally allowed to prescribe medicines for purposes not listed in this section (so-called “off-label usage“), as long as that use is not specifically contraindicated. However, the pharmaceutical company’s labeling may not discuss this off-label use, even if there is scientific evidence supporting it, until the FDA approves it. Recently, there have been major fines levied by the US Department of Justice against pharmaceutical companies that push off-label use through subtle advertising or sales rep conversations. 
  • Contraindications–this section probably contains the most important information within all of the verbiage of a package insert. It lists situations in which medication should not be used, for example in patients with certain medical conditions, in children, or other situations.  A good example of contraindications for vaccines is that most flu vaccines are contraindicated for patients with egg-protein allergies.
  • Warnings and precautions–this covers possible serious side effects that may occur with use of the drugs. If the warnings are particularly serious (risk of death, for example), they may be placed in the Boxed Warning section. This section also explains how to use the medication safely, for example stating that “Do not drink alcohol while taking this medication” or other common precautions. It also describes any laboratory tests that may be necessary prior to using the drug. Serious side effects with known, evidence-based causal associations are listed in this section. This section is much more important with powerful therapeutic drugs that often have critical side effects.
  • Nonclinical toxicology–this section describes the potential of carcinogenesis (causing cancer), mutagenesis (causing mutation) or impairment of fertility from the drug. This section has little applicability to vaccines, since they have no carcinogenic, mutagenic, or fertility effect, given that the level of the vaccine’s ingredients’ dosage fall far below the lower threshold of the any dose-response test of these issues. The PI may state some innocuous verbiage such as “no known information” meaning that in the 10-15 years of research and study, no evidence that the vaccine is carcinogenic or mutagenic. 
  • Use in specific populations–this describes if and how the drug may be used in the following populations of patients: pregnancy, labor and delivery, nursing mothers, pediatrics or geriatrics.
  • Adverse reactions–this sections lists all side effects observed in all studies of the drug (including post-marketing studies), whether or not it has been scientifically established that the drug causes the side effect. Almost all of these side effects are coincidental observations and are rare of much concern.
  • Drug interactions–essentially, this section describes any interaction this drug may have with other drugs.
  • Drug abuse and dependence–this section provides information regarding whether prolonged use of the medication can cause physical dependence, not something that is critical for a vaccine package insert. 
  • Overdosage–this section, critically important in lifesaving situations, gives the results of an overdose and provides recommended action in such cases.
  • Dosage and administration–this part provides the recommended dosages with detail for different ages, medical conditions, and size of patients.
  • Dosage forms and strengths–this section lists out the various dosages and strengths of the drug
  • How supplied–this explains in detail the physical characteristics of the medication including color, shape, markings, etc., and storage information (usually with a range of temperatures).
  • Patient counseling information–this details information useful for patients including who to contact in an emergency and how to report adverse reactions to the company or to the FDA.
  • Clinical studies–this covers the clinical trials that were performed prior to approval. It does not include anything more current, and some PI’s can be over 10 years old.
  • References–this includes all of the citations for clinical trials, pharmacology, and other information related to the drug. Again, it is only as current as the date of the package insert (which is listed at the bottom), so it can be way out of date.

So, that’s a lot of information, but is any of it useful? How does one interpret the information in the PI? Especially for vaccines, which are not truly a therapeutic drug (it doesn’t cure a disease state, but prevents it), and which has ingredients in levels that are below the level of detection in a dose response study.

But what can we learn from a package insert?

The information in a package insert can be used in a manner to help treat a patient. Vaccine deniers idolize vaccine PI’s as some biblical statement about the dangers of vaccines. Once again, it’s easy to cherry pick information out of a PI if one doesn’t fully comprehend how the information in the PI is included.

To a real evidence-based (or science-based) physician, the only useful information in PI for vaccines are (in no particular order of importance):

  • Clinical pharmacology. Knowing this information helps the scientific minded (not a skill set well known in vaccine deniers) how the drugs work. By understanding this section, you begin to comprehend how a drug may treat a disease, but also how it probably isn’t related to a mythical adverse event. For example, knowing how immunizations work, you will realize that intramuscular injections are a perfectly scientific method of inducing an immune response, that there is no logical reason to believe an injection would cause a neurological disorder, and other silly myths. But pharmacology is very hard to understand, so most people ignore it. I wouldn’t. 
  • Contraindications. There are very few contraindications in vaccines. But the ones that do exist are quite serious. For example, the aforementioned sensitivity to egg proteins in flu vaccines. Or yeast sensitivity for Gardasil. Physicians are very aware of these issues, as are most places, like pharmacies, that do vaccinations.
  • Warnings. These are adverse events that have evidence supporting their causal association with the drug or vaccine. As opposed to the adverse reactions section, which tends to be abused by vaccine deniers, this section is where solid, repeatable scientific data is located. The FDA, by regulation, can mandate a change in the PI to include new warnings as evidence arises. Not a single PI for vaccines mentions autism as a “warning.” Not one.

The most misinterpreted misused section of the PI insert is “Adverse Reactions.” The FDA states that the section should include events “for which there is some basis to believe there is a causal relationship between the drug and the occurrence of the adverse event.” The key word is “believe”, instead of based on evidence. And frankly, anything with serious evidence would be in the Warnings section, so the Adverse Reactions section is a laundry list of observed events that probably have nothing to do with the drug (or vaccine) but remain there so that the pharmaceutical company is covered in case of a lawsuit. Yes, pharmaceutical companies are constantly frightened of litigation, and the package insert is often the first line of defense against those frequent lawsuits. But we digress.

The Adverse Reactions section, taken by itself, is the pseudoscientific way of reviewing the data. Here’s what is important:



The chance of death is 1000X higher than the chance of proven causal adverse events. This is real science, where the benefit, saving lives, vastly outweighs any risks, even the nonsense “laundry list” risks that may not have anything to do with the vaccine. If you fall for the Nirvana Fallacy, that is if it’s not perfect, then it’s worthless, then sure, vaccines aren’t perfect so they must be useless. But the fact is that they save lives, and until such time the vaccine deniers can actually spend the time in getting their Ph.D. or MD, then do research in a world-class laboratory and then publish data that shows either the adverse events are all real and are much higher than stated in the PI, and shows that vaccines have no benefit, the vaccine deniers just have no basis for their claims. They are misinforming and misusing information to support their beliefs, rather than using real science and determine whether all of the evidence supports or nullifies their hypothesis. Of course, that takes real work, and vaccine deniers are just too lazy to do real research. It’s just better to spout off a belief rather than actually accumulate real evidence.

A fellow skeptic, and thorn in the side of vaccine deniers everywhere, wrote a hysterically funny article about a mythical airline package insert. The adverse events are, of course, death, massive body damage, and more death. But the risk of dying on a flight across the country is 10,000X lower than driving across the country. So if you focus on the adverse events, without understanding the frequency of the risk (let alone the causality), it is absolutely useless. Context matters. Take a single data point out of the context of all other information, and you could “prove” anything. But being a real critical thinker, and using that information along with all other available data, especially data of a higher quality, then you might reach a rational decision.

Package inserts have excellent and useful information, important for physicians and other healthcare workers in treating patients. However, package inserts must be read fully, without cherry picking data that supports your point of view. Taking information out of context, without spending the effort to understand it completely, just shows the level of denialism. The anti-vaccinationists are focused on finding any data, no matter the quality, that supports what they want to believe. But if you are truly on the fence about vaccinations, then the adverse events information in a package insert is not the place to start. There is so much information out there, but if you read that information with an open, critical mind, you will find that the scientific consensus strongly supports the safety and effectiveness of vaccines.

One young woman did just that, despite initially being antivaccine. Her open mind lead her to eventually vaccinate her two children. Good for her. 

Vaccines save lives, and we have evidence that supports it.

Visit the Science-based Vaccine Search Engine..


Comments (52)
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  • gipsika

    “It is neither optimized for or tested on other platforms, including including Internet Explorer.” YAY! IE is a fossil, I’m with anyone who fails to bother about it! :-D

    • Skeptical Raptor

      I think calling IE a fossil is giving it more credit than it deserves. LOL

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  • Lowell Hubbs

    How about vaccine contamination? Should that be of any concern? That is not listed on the vaccine insert, nor anywhere else? In fact it appears that such as the cancer causing SV40 virus will now be with us on this planet forever.

    Simian virus 40 in humans

    Fernanda Martini1, Alfredo Corallini2, Veronica Balatti1, Silvia Sabbioni2, Cecilia Pancaldi1 and Mauro Tognon1*

    Corresponding author: Mauro Tognon

    Author Affiliations

    1 Department of Morphology and Embryology, Section of Cell Biology and Molecular Genetics, School of Medicine, and Center of Biotechnology, University of Ferrara, Via Fossato di Mortara, 64/B. 44100 Ferrara, Italy

    2 Department of Experimental and Diagnostic Medicine, Section of Microbiology, University of Ferrara, Via Luigi Borsari, 46. 44100 Ferrara, Italy

    Excerpts: These results suggest that (peripheral blood mononuclear cells) PBMCs, could be a reservoir and vehicle of SV40 spreading in the tissues of the host and among the individuals. (iii) SV40 sequences were found in urine and stoole samples, from children and adults [84,89,90], indicating that the haematic, sexual and orofecal routes of transmission are likely to be responsible for SV40 horizontal infection in humans.

    Advances in Virus Research, Volume 50

    Pages 83 and 84, read. (Also see the study titled, Simian virus 40 in humans, below on this page)


    Moreover, blood and sperm fluid may represent important means for spreading of SV40 in humans.

    Indeed in these investigations, (Martini etal;, 1995,1996) 61% of the neoplastic patients positive for SV 40 sequences were of an age excluding exposure to SV 40-contaminated polio vaccines, suggesting contagious transmission of SV 40 by horizontal infection.

    Polio Vaccine, Simian Monkey Virus and cancer links

    Gardasil Vaccine Found to be Contaminated

    SANE Vax to FDA: Recombinant HPV DNA found in multiple samples of Gardasil

    Gardasil Vaccine rDNA Introduced at Coroner’s Inquest

    Bombshell Interview Reveals DNA Fragments Discovered 6 Months After Vaccination, (Gardasil)

    The persistence of HPV DNA fragments and adverse effects in HPV shot recipients

    Truth About Gardasil, (personal accounts of the harm done)

    HPV vaccine linked to deaths

    Death after Quadrivalent Human Papillomavirus (HPV) Vaccination: Causal or Coincidental?

    Conclusions: Our study suggests that HPV vaccines containing HPV-16L1 antigens pose an inherent risk for triggering potentially fatal autoimmune vasculopathies.

    Published on Dec 5, 2012
    Dr. Deisher testifies at the MN House about vaccine safety. She presents research demonstrating a link between the rise in the rates of autism and the use of aborted fetal cells in the production of vaccines. Dr. Deisher is the president and founder of SoundChoice, a non-profit that works to provide safe vaccination alternatives.

    Dr. Deisher testifies on the connection between vaccines and rising rates of autism (2 of 4).

    Dr. Deisher testifies on the connection between vaccines and rising rates of autism (3 of 4).

    Dr. Deisher testifies on the connection between vaccines and rising rates of autism (4 of 4).

    Spontaneous Integration of Human DNA Fragments Into Host Genomes


    Spontaneous cellular and nuclear DNA uptake was evident in HFF1 and U937. Spontaneous cellular uptake was seen in NCCIT. DNA uptake in BE (2)-C, M059J, and M059K was not measurable because of high auto fluorescence of the cells. No Cy3 signal was observed in HL-60. The amount of labeled Cy3 human Cot1 DNA incorporation in U937 genomic DNA was 0.0111 +/- 0.0034pg (n=12) per cell in 24 hours, which was approximately 0.167% of total U937 genomic DNA.


    This study demonstrates that primitive short DNA fragments (50-300 bp) are spontaneously taken up by HFF-1, U937 and NCCIT cells and inserted into the genome of the monocytic leukemia cell line U937. Hence, vaccines containing residual HERVK and human fetal DNA fragments may contribute to the genomic instability observed in ASD.


    The dangers of using aborted fetal cell lines for vaccine manufacture have been debated by the FDA for over 50 years, and yet they have not done sufficient safety studies. The active component of a vaccine is a virus. Viruses are too large to manufacture in test tubes. Therefore, vaccine manufacturers exploit the natural method of producing virus– they inoculate cells and the cells produce the virus for them. Each vial of vaccine contains contaminants from the cells used to make the virus. When we use animal cells to make viruses, the residual material is not human and so we mount an immune response to it and eliminate it. However, in the case of vaccines produced using aborted human fetal cell lines, we have the dangers of triggering an autoimmune response and insertion of the contaminating DNA to disrupt the child’s own genes.

    In the US, autism has spiked up in 3 distinct years, called changepoints. The first changepoint occurred in 1981, the second in 19881, and the third in 1996. These spikes coincide with the introduction of vaccines that are produced in aborted fetal cells. In 1979, aborted fetal cell produced MMR II was approved in the US. Compliance campaigns brought MMR II use up from as low as 49% for children born before 1987 to over 82% for children born in 1989 and later. A second dose of MMR II was also introduced to the vaccination schedule for children born in 1988 and later. The third changepoint corresponds to the approval of aborted fetal cell produced Varivax (chickenpox) in 1995 (See figure below).

    Read more:

    For Scientific Data: Homologous Recombination Study

    Chickenpox Vaccine Use is Highly Statistically Related to Autism Disorder; (using by the way, human diploid tissue in manufacture)

    Viral Nucleic Acids in Live-Attenuated Vaccines: Detection of Minority Variants and an Adventitious Virus

    Vaccine Contamination: Pig Virus DNA Found in Rotarix

    Autism Epidemic, Is Foreign DNA in MMR II Vaccine Responsible? CBCD Suggests CDC Study Microcompetition Theory
    The Center for the Biology of Chronic Disease (CBCD) believes that the cause of the epidemic is the foreign DNA in the MMR II vaccine.

    Toxic Vaccines? CBCD Sends Letter to FDA & CDC on Foreign DNA Fragments in Gardasil and MMR
    The CBCD sent a letter this past week to the offices of the FDA Commissioner, Dr. Margaret Hamburg,and to the offices of the CDC’s director, Dr. Thomas R. Frieden.

    Vaccines Contaminated with Mycoplasma’s – by Garth Nicolson

    Garth Nicolson has written and published hundreds of peer reviewed medical journal articles. He discusses how vaccines are not tested for mycoplasma contamination’s.

    Microcompetition with foreign DNA and the Origin of Chronic Disease. [Paperback]

    A selection from: Microcompetition with Foreign DNA and the Origin of Chronic Disease
    by Hanan Polansky, August 2004

    Junk Science? Number 71: Big Pharma bias and inaccurate conclusions in vaccine research

    The conclusions drawn in over 80 per cent of flu vaccine global research studies did not hold up to objective scrutiny, according to a report in the BMJ, March 2014. Huge inaccuracy levels like these rightly fuel serious skeptic concerns that flu vaccine benefits are often hyped.

    The BMJ study, which looked at some 274 comparative studies on flu vaccination, found that only a mere 18 percent of the studies were deemed to actually prove what the articles claimed to be their findings!

    Read more:

    • Skeptical Raptor

      Youtube videos are hardly reliable sources for anything but someone babbling themselves without any reliable sources. It’s like a self-fulfilling source about itself.

      The BMJ story, written a shill for the anti-vaxxers, decided arbitrarily to void any study that had Big Pharma support without any substantial evidence that the quality of a study with or without support had any difference in quality. That’s cherry picking of cherry picking, and is laughable.

      I’ve already dismissed the bogus claims about SV40.

      Really do you have anything original? Cause, you are known spammer on Disqus.

      • Lowell Hubbs

        You haven’t actually dismissed anything, other than in your own mind. Can you actually address that vaccine contamination information, directly? No you can not? Where are the counter studies showing the confirmation of no such contamination? Where are your studies showing no link to autism, in regard to that contamination issue. The CDC has not even begun to look at any such thing, other than to for the most part deny the existence of any such contamination; and when they are forced to realize its existence by confirmation made by a private lab; they simply deny there is any evidence and nor any scientific proof ever existing, as to and regarding the potential harm to human health.

        Those studies do not exist which you need to refute this information. Where are your Big Pharma studies? Where is the confirmation of the quality of their studies? You can not get any closer to cherry picking than only accepting the so called studies of big pharma and their cohorts? I am telling you right here and now, I want you to produce the comparable counter studies and direct data. Who is disregarding and limiting the data here, you or me? The table is always open. And that was the best you could do. All you ever have is falsely discrediting claims and excuses, for why you have failed and continue to fail to address the actual information.

        And actually it appears that the said analysis of the BMJ study, was quite accurate.

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    • Lowell Hubbs

      This Mama Isn’t Scared of the Shmeasle Measles

      The Schmeasle Facts

      So far, in 2014 there have been 288 cases of measles, no cases of encephalitis, and no death. In 2013 there were 189 cases of measles, no encephalitis and no death. In 2012 there were 54 cases of measles, no encephalitis, and no death. In 2011, there were 22 cases of measles, and you guessed it…no encephalitis, and no death. I could go on, but you get the point. By and large, measles is unpleasant, not deadly.

      In comparison, the same cannot be said for the MMR vaccine. As of March 1, 2012 there were 842 serious injuries following the MMR vaccine and 56 deaths. Since 1990 there have been more than 6,058 serious adverse events reported to the Vaccine Adverse Events Reporting System (VAERS). What’s even more sad is that only 1-10% of cases are actually reported on this database. Oh now I remember, statistics are only important as it relates to measles cases…not MMR adverse reactions. And of course, the global MMR death statistics aren’t important either.

      But measles can cause blindness…so can the MMR vaccine.

      But measles can cause encephalitis…so can the MMR vaccine

      But measles can cause pneumonia…so can the MMR vaccine.

      But if I don’t get vaccinated, I could get measles…If you do get vaccinated you can get measles, both from the vaccine, and later in life when immunity has disappeared. The CDC says that 5-10 percent of people vaccinated with MMR will develop a fever and rash. This means there are 650,000-1,300,000 cases of vaccine-induced measles in the U.S each year based off of the 13-14 million doses given to one-year-olds.

      Read more:

      Measles Shmeasles…(a great common sense read by a mother)

      VRM: Measles Report, (More outbreaks of measles in largely the vaccinated, not the un-vaccinated; and it is quite well referenced)

      Data Reveals Measles Outbreaks Have Nothing to Do With Non-Vaccination Trends

      Acellular pertussis vaccines protect against disease but fail to prevent infection and transmission in a nonhuman primate model

      Acellular Pertussis Vaccine May Not Prevent Transmission

      Disease outbreaks are concentrated in highest-vaccinated population – Council on Foreign Relations

      Whooping cough vaccine may not halt spread of illness – NBC

      NY Measles Outbreak Blamed on Unvaccinated, Despite 90% of Infected Having Been Vaccinated

      91% Fully Vaccinated Involved in Pertussis Outbreak

      Video on the 2010 Outbreak in California. Notice how the media blame the Unvaccinated while 91% of the cases were Fully Vaccinated.

      Warning to Pregnant Mothers – Toxic Dose of Aluminum in the Tdap

      • James M. Barber

        What a complete asshole. Links to conspiracy theory websites don’t constitute proof. Its very obvious that you don’t have any biochemical training, and that most of your sources are just frightened people trying to make a case for some conspiracy or another.

        • Skeptical Raptor

          Lowell Hubbs is this blog’s personal troll. He has even put out a YouTube video about me and another contributor here. He’s fun to watch in action.

    • MelodyRN

      These are great answers. Were they answered in a future post?

      • Skeptical Raptor

        I missed this comment from Dorit. :(

        Now I have to figure out the answers to her questions. Thanks for posting this Melody

      • Skeptical Raptor

        Done. :)

    • Skeptical Raptor

      1. The reason why new information isn’t added is because it requires a whole new review process internally and then with the FDA. Revisions to the Package Insert requires medical review, R&D review, legal review, regulatory review, and executive review even before it’s sent to the FDA. The FDA, of course, approved the drug with the research added in the original application. No one wants to make these changes unless there are material data found in post-marketing clinical trials. Then it’s against the law to not make the changes. So there are a number of barriers to even think about making a change.

      2. New inserts probably take a year to update internally. Depending on what is being requested, it can take up to a year for the FDA to approve it. However, if a drug company uncovers a serious issue, say that a particular vaccine is dangerous with someone with red hair and freckles, then a black box warning is required, and the FDA will approve the change within days, even hours.

      3. If I’m reading it right the risk is estimated statistically based on observations during the clinical trial. However, 1 in a million, from a statistical point of view, approaches “this is random.” There is simply no way to detect a 1 in a million effect with 3000 or so patients. I don’t think there’s a way to detect a 1 in a million effect with 1 or 10 million patients. I think, if my statistics are right, you need 100 million patients to see a statistically significant 1 in a million risk. So, if I recall correctly, when a PI includes “1 in a million” it almost means that “we’ve seen it, we’re not sure it’s related to MMR, but if it were, the risk is so small as to be nearly immeasurable.”

      Again, that’s why it’s incredibly amateurish to take package insert data to heart as some sort of “truth.” In fact, much of the language is boilerplate, there’s a lot of “covering your ass” aspects to it for both Big Pharma and the FDA, and it doesn’t represent peer-reviewed science. It represents regulations that require certain information to be added.

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