Tiredness; Nauseated; achy all over his body; chills and a little bit of fever around 101.4 degrees; Night sweats; eye swelled up and itched; chills and a little bit of fever around 101.4 degrees; eye swelled up and itched; This is a spontaneous report from a contactable consumer via, Pfizer-sponsored program COVAX US Support. A 80-years-old male patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Solution for injection, Batch/Lot number and Expiration date was not reported), via an unspecified route of administration, administered in Arm Left on 23Jul2021 17:00 (age at vaccination 80 years) as dose 1, single for covid-19 immunisation; warfarin (WARFARIN), via an unspecified route of administration from an unspecified date (Batch/Lot number was not reported) to an unspecified date, at 1 mg for Heart surgery, blood thinner. Medical history included, prostate cancer (caller tested positive for prostate cancer), covid-19 from Jan2021 to an unknown date (He thinks he should mention that back in January 2021 he and his wife tested positive for Corona virus) Due to him having heart surgery two months prior they sent him to the hospital and did the antibody infusion. He had no side effects. It didn't bother him one bit. He couldn't even tell he was positive. He wasn't sick or nothing, Heart surgery from an unknown date and unknown if ongoing (Warfarin: He has been on it since his heart surgery). Concomitant medication(s) included amiodarone hydrochloride (PACERONE); atorvastatin (ATORVASTATIN) takes at night because he was told that is the best time to take it; metoprolol succinate (METOPROLOL ER); isosorbide mononitrate (ISOSORB MONO) taken for heart. The patient previously took tamsulosin (Tamsulosin 4mg. He takes one a day) The doctor plans on getting caller another biopsy in the near future. Caller thinks it will be in September. That is to see if it is worse or anything, finasteride, flomax [tamsulosin hydrochloride] He has been on it for maybe a year, amox+ac clav san [amoxicillin sodium;clavulanate potassium]. On 24Jul2021 the next day probably 10 or 11PM the patient experienced tiredness, nauseated, achy all over his body, chills and a little bit of fever around 101.4 degrees, night sweats, eye swelled up and itched. Reporter stated, He is on a blood thinner because he had heart surgery 8 months ago, He is waking up soaking wet. Today or last night was better. He wasn't as bad. He went to the doctor Monday because his eye swelled up and itched. Reporter didn't know if that was related or not. The doctor told him that shouldn't have any bearing on the shot. The doctor didn't think there was any possibility of it being related to the shot. The blood thinner he is on is Warfarin. He has been on it since his heart surgery. It is 1mg. He started with Eliquis first and had to change because it was 500 dollars a month. That is hard to afford on Social Security, so he had to switch. He gets Warfarin at Walmart pharmacy and product is in pharmacy vial. He doesn't have NDC, lot, and expiry to provide. Patient took Warfarin is 3 mg tablet. He takes half one day and a whole one the next day. He alternates. His doctor drew blood and checked to make sure it is ok to do it like that. Eliquis was in a pharmacy vial. Reporter states he has to get glasses to be able to see. The Urologist has him on a medication and it is normal for people to take. No additional Vaccines Administered on Same Date of the Pfizer Suspect. he antibiotic his doctor gave him to take is Amox/kclav 500-125. He takes one twice a day. He was told it could be 30 or 40 days between the doses. Going to go back in 30 days and get the second one.Right now he is feeling better. His wife felt tired and weak for a day, the next day after the first dose. His wife is already feeling better today.The patient underwent lab tests and procedures which included blood test with unknown result, body temperature: 101.4 on 24Jul2021 (chills and a little bit of fever around 101.4 degrees). Patient visited physician office visit for event eye swelled up and itched. Therapeutic measures were taken as a result of , eye swelled up and itched the doctor gave him an antibiotic and salve to take the swelling down. The outcome of event was unknown.  Description of complaint:  The prostate doctor put him on something because caller tested positive for prostate cancer. Finasteride was one of the best ones and it worked perfect. Then they put him on Flomax. Flomax does a pretty good job, but it is not like Finasteride. The doctor plans on getting caller another biopsy in the near future. That is to see if it is worse or anything. Caller clarified that the slang name is Flomax but the real name of the medication he is taking is Tamsulosin 4mg. He takes one a day. Tamsulosin is in the (pharmacy name) bottle. He doesn't have NDC, lot, and expiry to provide.  Information on the lot/batch number has been requested.