Fatigue; Headache; not feeling too good; Extreme dizziness; This non-serious case was reported by a pharmacist via call center representative and described the occurrence of fatigue in a 74-year-old female patient who received RSVPreF3 adjuvanted (Arexvy) (batch number 5J959, expiry date 25-OCT-2025) for prophylaxis. On 27-DEC-2024, the patient received Arexvy. On an unknown date, an unknown time after receiving Arexvy, the patient experienced fatigue (Verbatim: Fatigue), headache (Verbatim: Headache), feeling bad (Verbatim: not feeling too good) and dizziness (Verbatim: Extreme dizziness). The outcome of the fatigue, headache, feeling bad and dizziness were not resolved. It was unknown if the reporter considered the fatigue, headache, feeling bad and dizziness to be related to Arexvy. It was unknown if the company considered the fatigue, headache, feeling bad and dizziness to be related to Arexvy. Additional Information: GSK Receipt Date: 03-JAN-2025 Pharmacist reported that he/she had a patient here who received the Arexvy vaccine a week ago from today, last Friday. They did experienced some side effects like fatigue, headache and not feeling too good, extremely dizzy and they were still experienced those side effects on the day of reporting. Consented to follow up.