Age: 60.0
Sex: F
Vaccine: COVID19
Symptoms: Pain in extremity, Paraesthesia, Peripheral swelling, Skin discolouration, Vaccination site erythema
Clinical narrative: This is a spontaneous report from a contactable consumer.  A 60-year-old female patient received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), lot number: EL1283, subcutaneous on 20Jan2021 15:00 at SINGLE DOSE for COVID-19 immunization. Medical history included diabetes, anaemia, blood pressure, cholesterol. Patient received the first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), lot number: EU9899, in the left arm on 30Dec2020 15:00 at SINGLE DOSE for COVID-19 immunization and experienced swelling and redness at the site. Concomitant medications included liraglutide (VICTOZA), labetalol (LABETALOL), diltiazem (DILTIAZEM), valsartan (DIOVAN), rosuvastatin, metformin, aspirin and iron. The patient thinks that it wasn't given to her intramuscularly. This is a potential inadvertent subcutaneous administration of the BNT162B2. This patient received her second dose on 20Jan2021 on the side of her arm and reported that it was swollen, red, and hot, but has gotten 100 times better' over the last 6 days since administration. She was asking for efficacy of the incorrectly administered dose. It was further stated that in the middle of the night, her arm was red almost like a little bullseye and she said that she was getting burning, and pins and needles down her arm, and a fullness in her hand like her hand was swollen. She said that she still kind of feels it. As the days progressed on day 2, 3, and 4, the swelling got more intense, the circular red swollen area got worse to the size of like a small baseball. She was feeling okay other than that. Today was day 6 and it was not as red and was more black and blue, swelling went down 80 percent, she still feels a little bit of the pins and needles and the fullness in her hand. She said that there was like a big knot that was very hot. It was a hard like knot at the injection site. The injection site was really big, round, hot, red, and had a knot that lasted; adds it is still there but 99% better; and she had tingling down her arm with pins and needles in her hand. She noticed it was little red a couple of hours, like 8 hours later; but by the next day it was circular, more red, swollen, itchy, and burning down her arm. By the third day, the site had a big, red, hard knot; still burning down her arm and with pins and needles down her arm. She added that her hand felt like a fullness in her hand filled with fluid. By Friday the swelling at the site was gigantic. The site swelling is improved but the redness was more of a black and blue now. Her arm has been very dark red, discolored, swollen, painful and has nerve pain described as "hot tingling down the arm like pins and needles" to her hand. She states that she has a very large knot at the injection site. This was in her non-dominant arm. She spoke with two of the pharmacists that she works with and they looked at her arm and both felt like she may have received the injection subcutaneously instead of intramuscularly. The outcome of events was not recovered. No follow-up attempts are possible. No further information is expected. Information on the batch/lot number has been obtained.