Dizziness immediately after getting; Headache immediately after getting; Rash up arm and across chest; This is a spontaneous report received from contactable reporter(s) (Pharmacist) from medical information team.  A female patient received bnt162b2 (BNT162B2) (Lot number: FC 3181, Expiration Date: Oct2021) as dose number unknown, single for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. The following information was reported: DIZZINESS (non-serious), outcome "unknown", described as "Dizziness immediately after getting"; HEADACHE (non-serious), outcome "unknown", described as "Headache immediately after getting"; RASH (non-serious), outcome "unknown", described as "Rash up arm and across chest".  Additional information: The reporter said about drug information characterization of suspect product. The Proprietary medicinal product name Pfizer-BioNTech Covid-19 Vaccine in country drug was RA. The received date on 18Aug2021 16:01:12 UTC. There was no AE request and attachments. The patient did not reported age. The reporter specialty about pharmacist and product quality Complaints and AE reported. The product expired date 31Oct2021 and Lot No: FC 3181.It was Vial Product Pfizer-BioNTech Covid-19 Vaccine. This week reporting severe side effects. there may be an issue with a batch, four people have had same or similar side effects: headache immediately, dizziness immediately, rash going up the arm and across the chest, all within this last week.  Pharmacist states 2 of the 4 individuals experienced the following. The female within 5 minutes had dizziness and lightheaded, she started having difficulty breathing, 911 called all vitals were good, also had nausea and vomited a little bit, just clear liquid. The next also a female, within first 5 minutes experienced headache behind her eyes, her eyes turned dark red immediately within that first 5 minutes. out of this batch there have been 4 individuals in this past week from a total about 200 administered from that batch. Should she quarantine and not gave any more from this. The states that she noticed the side effects were listed on the fact sheet, just concerned because this is the first time it's been back-to-back like this. - Caller also states she was mostly concerned because people are coming back with a rash across the chest and in the vaccinated arm. Should we quarantine them. We were about to hit 300 provided by the end of the day. We have never had any side effects within one batch like this. E-transmitting Possible Duplicate AE/PQC - (this reported may contain additional information not shared prior to transfer to the Medical Information). The Reaction/event as reported by primary source and Headache immediately after getting and Rash up arm and across chest. The initial selected reported. The Received call from pharmacist regarding the Pfizer COVID vaccine. She was a pharmacist at [withheld] and had noticed a few side effects from 4 patients in one week that were all the same and were coming from the same Lot FC3181. She was wondering if Pfizer would recommend, she quarantine the batch. She had given over 200 out of that batch. She did not have any patient information to provide today and requested to be transferred to have her question answered. She completed VAERS reports for the patients. She stated she will go online and use the QR code to complete Pfizer reports as well. She was just trying to saw if she should keep giving. No further details provided. The did not provided Product strength and count size dispensed and Packaging sealed and intact.  No follow-up attempts are possible. No further information is expected.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202101069070 same reporter/drug, different patient/similar AE