Age: 64.0
Sex: F
Vaccine: COVID19
Symptoms: Nausea, Tongue discomfort
Clinical narrative: burning of the tongue; Difficulty in breathing; headaches; Pressure in the chest area; nausea; dizziness; fast heartbeat; tiredness; Had a hard time swallowing at night from the dryness; bitter taste; her mouth went completely dry; patient received 0.45 mL, single dose (225mcg) of PFIZER-BIONTECH COVID-19 VACCINE; This is a spontaneous report from a contactable nurse (patient). A 64-year-old female patient received first dose of bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Batch/lot number: EJ1685), via an unspecified route of administration on 23Dec2020 15:00 at 0.45 mL, single dose (225mcg) at left arm to prevent COVID. Medical history included a bout of dry mouth about 7 years ago, no other relevant medical history (including any illness at time of vaccination). The patient's concomitant medications were not reported. There's no adverse events following prior vaccinations. Patient didn't receive any other vaccines within 4 weeks prior to the COVID vaccine. From the time she got the vaccine her mouth went completely dry on 23Dec2020 and she kept thinking it would go away and she still had it. Event was reported as serious per medically significant. Had a hard time swallowing at night from the dryness. Patient had the bitter taste was also on 23Dec2020, but it went away. It lasted about 5-6 hours. Then after that the dry mouth started right after. It is tolerable but she still had it. Mentioned she had a bout of dry mouth about 7 years ago and it did go away, but she never got a diagnosis for it. Patient thought that something underlying may have triggered it again. Patient also experienced burning of the tongue, tiredness, headaches, pressure in the chest area similar to difficulty in breathing, nausea, dizziness, and a fast heartbeat on unspecified date. Outcome of event dry mouth was not recovered, outcome of event bitter taste was recovered on unspecified date in Dec2020, outcome of other events was unknown. No family medical history relevant to adverse events. No relevant tests. No history of all previous immunization with the Pfizer vaccine considered as suspect. No additional vaccines administered on same date of the Pfizer suspect. The adverse events resulted in neither doctor or other healthcare professional office/clinic visit, nor emergency room/department or urgent care.   Relatedness of Pfizer BioNTech Covid-19 vaccine with dry mouth and bitter taste per primary source reporter with method of assessment of global Introspection was related. Reporter seriousness for event bitter taste was not serious.; Sender's Comments: A possible causal association between administration of BNT162B2 and the onset of dry mouth cannot be excluded, considering the plausible temporal relationship.  The impact of this report on the benefit/risk profile of the Pfizer product is evaluated as part of Pfizer procedures for safety evaluation, including the review and analysis of aggregate data for adverse events. Any safety concern identified as part of this review, as well as any appropriate action in response, will be promptly notified to Regulatory Authorities, Ethics Committees and Investigators, as appropriate.