menstruation abnormal/ periods have ceased; this is a spontaneous report received from a contactable reporter(s) (consumer or other non hcp) from the regulatory agency (ra). the reporter is the patient. regulatory number: gb-mhra-webcovid-202202170926352440-nc6tv (ra). other case identifier(s): gb-mhra-adr 26611782 (ra). a female patient received bnt162b2 (comirnaty), administration date 04oct2021 (batch/lot number: unknown) as dose 3 (booster), single for covid-19 immunisation. the patient's relevant medical history and concomitant medications were not reported. vaccination history included: bnt162b2 (dose 1), for covid-19 immunization; bnt162b2 (dose 2), for covid-19 immunization, reaction(s): "very heavy periods". the following information was reported: amenorrhoea (medically significant) with onset 2021, outcome "not recovered", described as "menstruation abnormal/ periods have ceased". the patient underwent the following laboratory tests and procedures: sars-cov-2 test: negative, notes: no - negative covid-19 test. clinical course: following patient's booster vaccine her periods have ceased and she was now 5 months with no period. patient has not had symptoms associated with covid-19. patient has not tested positive for covid-19 since having the vaccine. patient was not enrolled in clinical trial. patient's report did not relate to possible inflammation of the heart (myocarditis or pericarditis). no follow-up attempts are possible; information about lot/batch number cannot be obtained. no further information is expected

test name: covid-19 virus test; test result: negative ; comments: no - negative covid-19 test

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