It was reported that patient had mistakenly given the 6 months to 5 years old vaccine instead of the bivalent booster/patient received 0.5 ml from pediatric vial; It was confusing because both the pediatric dose and the bivalent booster dose have blue caps/The color on the bivalent and the child monovalent vials are the same; No adverse event; It was reported that patient had mistakenly given the 6 months to 5 years old vaccine instead of the bivalent booster/patient received 0.5 ml from pediatric vial; This spontaneous case was reported by a pharmacist and describes the occurrence of INCORRECT DOSE ADMINISTERED (It was reported that patient had mistakenly given the 6 months to 5 years old vaccine instead of the bivalent booster/patient received 0.5 ml from pediatric vial), PRODUCT ADMINISTERED TO PATIENT OF INAPPROPRIATE AGE (It was reported that patient had mistakenly given the 6 months to 5 years old vaccine instead of the bivalent booster/patient received 0.5 ml from pediatric vial), PRODUCT APPEARANCE CONFUSION (It was confusing because both the pediatric dose and the bivalent booster dose have blue caps/The color on the bivalent and the child monovalent vials are the same) and NO ADVERSE EVENT (No adverse event) in a 67-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 prophylaxis.     Previously administered products included for Product used for unknown indication: Pfizer (Booster dose) in November 2021. Past adverse reactions to the above products included No adverse event with Pfizer.    On 08-Sep-2022, the patient received dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) .5 milliliter. On 08-Sep-2022, the patient experienced INCORRECT DOSE ADMINISTERED (It was reported that patient had mistakenly given the 6 months to 5 years old vaccine instead of the bivalent booster/patient received 0.5 ml from pediatric vial). On an unknown date, the patient experienced PRODUCT ADMINISTERED TO PATIENT OF INAPPROPRIATE AGE (It was reported that patient had mistakenly given the 6 months to 5 years old vaccine instead of the bivalent booster/patient received 0.5 ml from pediatric vial), PRODUCT APPEARANCE CONFUSION (It was confusing because both the pediatric dose and the bivalent booster dose have blue caps/The color on the bivalent and the child monovalent vials are the same) and NO ADVERSE EVENT (No adverse event). At the time of the report, INCORRECT DOSE ADMINISTERED (It was reported that patient had mistakenly given the 6 months to 5 years old vaccine instead of the bivalent booster/patient received 0.5 ml from pediatric vial), PRODUCT ADMINISTERED TO PATIENT OF INAPPROPRIATE AGE (It was reported that patient had mistakenly given the 6 months to 5 years old vaccine instead of the bivalent booster/patient received 0.5 ml from pediatric vial), PRODUCT APPEARANCE CONFUSION (It was confusing because both the pediatric dose and the bivalent booster dose have blue caps/The color on the bivalent and the child monovalent vials are the same) and NO ADVERSE EVENT (No adverse event) outcome was unknown.        For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter considered NO ADVERSE EVENT (No adverse event) to be not related. No further causality assessments were provided for INCORRECT DOSE ADMINISTERED (It was reported that patient had mistakenly given the 6 months to 5 years old vaccine instead of the bivalent booster/patient received 0.5 ml from pediatric vial), PRODUCT ADMINISTERED TO PATIENT OF INAPPROPRIATE AGE (It was reported that patient had mistakenly given the 6 months to 5 years old vaccine instead of the bivalent booster/patient received 0.5 ml from pediatric vial) and PRODUCT APPEARANCE CONFUSION (It was confusing because both the pediatric dose and the bivalent booster dose have blue caps/The color on the bivalent and the child monovalent vials are the same).    No concomitant medication information was provided . It was reported that patient who was coming to get the bivalent booster, but patient received the Moderna pediatrics 6 months  to 5 years instead.  No treatment medication were provided   Most recent FOLLOW-UP information incorporated above includes: On 09-Sep-2022: Live follow up received contains significant information: Updated patient demographics, medical history, suspect product dose and units. On 09-Sep-2022: Follow up received contains non significant information.