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Pfizer Press Release Includes Myocarditis Warning

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On Friday October 13th Pfizer issued a Press Release that includes a risk warning.


  • Authorized or approved mRNA COVID-19 vaccines show increased risks of myocarditis (inflammation of the heart muscle) and pericarditis (inflammation of the lining outside the heart), particularly within the first week following vaccination. For COMIRNATY, the observed risk is highest in males 12 through 17 years of age. Seek medical attention right away if you have any of the following symptoms after receiving the vaccine, particularly during the 2 weeks after receiving a dose of the vaccine:
    • chest pain
    • shortness of breath
    • feelings of having a fast-beating, fluttering, or pounding heart
  • Additional symptoms, particularly in children, may include:
    • Fainting
    • Unusual and persistent fatigue or lack of energy
    • Persistent vomiting
    • Persistent pain in the abdomen
    • Unusual and persistent cool, pale skin
  • Fainting can happen after getting injectable vaccines including COMIRNATY. Your vaccination provider may ask you to sit or lie down for 15 minutes after receiving the vaccine
  • People with weakened immune systems may have a reduced immune response to COMIRNATY
  • COMIRNATY may not protect all vaccine recipients

Source: https://www.pfizer.com/news/press-release/press-release-detail/pfizer-amends-us-government-paxlovid-supply-agreement-and

It's important to note also according to Pfizer

Pfizer-BioNTech COVID-19 Vaccine has not been approved or licensed by FDA, but has been authorized for emergency use by FDA, under an EUA to prevent Coronavirus Disease 2019 (COVID-19) for use in individuals aged 6 months through 11 years of age. The emergency use of this product is only authorized for the duration of the declaration that circumstances exist justifying the authorization of emergency use of the medical product under Section 564(b) (1) of the FD&C Act unless the declaration is terminated or authorization revoked sooner.

They also note the following:

  • Side effects that have been reported with Pfizer-BioNTech COVID-19 vaccines include:
    • Severe allergic reactions
    • Non-severe allergic reactions such as rash, itching, hives, or swelling of the face
    • Myocarditis (inflammation of the heart muscle)
    • Pericarditis (inflammation of the lining outside the heart)
    • Injection site pain/tenderness
    • Tiredness
    • Headache
    • Muscle pain
    • Chills
    • Joint pain
    • Fever
    • Injection site swelling
    • Injection site redness
    • Nausea
    • Feeling unwell
    • Swollen lymph nodes (lymphadenopathy)
    • Decreased appetite
    • Diarrhea
    • Vomiting
    • Arm pain
    • Fainting in association with injection of the vaccine
    • Dizziness
    • Irritability

These may not be all the possible side effects. Serious and unexpected side effects may occur.

Call the vaccination provider or healthcare provider about bothersome side effects or side effects that do not go away.

It appears the bothersome side effects have reached the noticable phase. One may want to make note of this the next time you speak to your physician.