second dose of Covid 19 Vaccine on 11Jan2021; little pain around the injection site; some nausea; some bouts of dizziness; This is a spontaneous report from a contactable consumer (patient). A 33-year-old male patient received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; Lot Number: EJ1685), via an unspecified route of administration on 11Jan2021 at single dose on right arm, mid bicep for COVID-19 immunization. There were no patient history. Concomitant medications included hepatitis b vaccine on 14Dec2020, colecalciferol (VITAMIN D [COLECALCIFEROL]), calcium and vitamin c [ascorbic acid] (VITAMIN C [ASCORBIC ACID]). The patient received  first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE; Lot Number:EK5730) on 18Dec2020 (left arm) and he experienced little pain around the injection site, some nausea and some bouts of dizziness. The patient received the Covid 19 Vaccine 4 days after receiving the Hepatitis B vaccination, so he identified this as an error in administration. So the Hepatitis B vaccination was given on 14Dec2020 and the first Covid 19 Vaccine was given on 18Dec2020. He received the second dose of Covid 19 Vaccine on 11Jan2021. Patient stated that originally the prescriber who administered it the first two doses had scheduled him to receive the second dose of Covid 19 Vaccine as the same day as his second Hepatitis B Vaccination and he identified this error last Wednesday and stated "I believe or potentially today, I'm not sure which one I'm sorry I had to check with that". So, he was trying to get this all cleared up. He did report symptoms for both Covid Vaccines as little pain around the injection site, some nausea, some bouts of dizziness. So, patient had already discussed the common adverse reactions with him. Patient was told that co-administration has not been studied yet and referred him to his HCP for continued guidance on how and when to space out the additional Hepatitis B vaccination that he will need. Patient was "32" back in December when this happened. He had his birthday and turned 33. Second shot for the Covid was scheduled the same day the Hep B (Hepatitis B Vaccine) but due to inveigle in-charge of the vaccine, he had lost his paper work and he had been on vacation and stated "had been vaccine was not found they just gave me the second Covid Vaccine and told me to come back by Thursday and I should have found it and have everything cleared up by then but then Wednesday they called me and told me that they have realized that they are not supposed to give vaccine co-administered with 14 days window before or after. I haven't got my second Hep B (Hepatitis B Vaccine) just the first one was administered within the 4 days period of the first shot". Patient work at Dietary Providence. The patient had his blood drawn this morning (20Jan2021). Patient does not have product details for hepatitis B vaccine. Patient stated that the nurse on duty had said that the vaccine they had stocks was "Engerix-B hepatitis B recombinant" but that was not verified as far as definitively is just what she had stocked when he was going on his incident report. Patient further stated, "As far as all things are concerned you know I went to a doctor got checked he said breathing was great, heart rate was great, oxygen level 98 percent, he has drawn blood by then is there anything that I should be doing at this point cataloging thing any other test any other people to contact. What should I do going forward specially what can I do to be helpful for you guys to get this situation clear." Outcome of the events was unknown.