loosing her hair/severe hair loss; This spontaneous case was reported by a consumer and describes the occurrence of ALOPECIA (loosing her hair/severe hair loss) in a 72-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for Prophylactic vaccination.    Co-suspect product included non-company product DUPILUMAB (DUPIXENT) for Asthma chronic.    No Medical History information was reported.   On 05-Feb-2020, the patient started DUPILUMAB (DUPIXENT) (Subcutaneous) 600 milligram. On 28-Feb-2020, DUPILUMAB (DUPIXENT) (Subcutaneous) dosage was changed to 300 milligram every two weeks. In December 2020, the patient received dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. In January 2021, received dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. In April 2021, the patient experienced ALOPECIA (loosing her hair/severe hair loss). The patient was treated with MOMETASONE FUROATE from 04-May-2021 to 05-Aug-2021 for Hair loss, at an unspecified dose and frequency and MINOXIDIL (oral) on 05-Aug-2021 for Hair loss, at a dose of 0.625 milligram, every day. At the time of the report, ALOPECIA (loosing her hair/severe hair loss) had resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 15-Jul-2021, Weight: lost 12 pounds.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown) was unknown.       Concomitant product use was not provided by the reporter.  It was reported that the patient had been losing her hair. She went to her skin specialist, and the doctor told her that it could be something she had come in contact with, hair dye etc. She went to her asthma specialist, and they did blood work to check her thyroid. The blood work came back in normal range. So, she called her primary care physician and was advised to call her skin specialist to ask for a biopsy. The patient was calling next day to ask. The patient had not had injection since Jul-2021 and did stop taking injections due to severe hair loss against her provider advice for eight (8) weeks. She had also lost 12 pounds (weight decreased) since Jul-2021 and provider recommended her restart dupilumab. She had experienced hair loss which she was not sure if its Dupixent or the Covid-19 vaccine. She started losing clumps of hair in late Apr-2021 and early May-2021. The prescriber was aware but did not believe it was caused by both Dupixent and Covid-19 vaccine. She saw a dermatologist on 04-May-2021 who prescribed Mometasone and Furoate cream and Tetraconazole shampoo. She saw another dermatologist on 05-Aug-2021 who discontinued the cream and shampoo and prescribed Minoxidil 0.625mg orally every day. She said she lost 40% of her hair and she got about 30% of it back and can see hair growing in some of the bald spots. She said she was also growing hair on her arms from the Minoxidil. The consumer said Dupixent was the best drug, she said her coughing had stopped. The nurse could not verify whether Dupixent was the consumer main medication for asthma or an add-on maintenance. At the time of the report, Dupixent was continued.   This case was linked to MOD-2022-631753 (Patient Link).   Reporter did not allow further contact