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It was reported that medication leaked around the syringe plunger during a subcutaneous injection of xolair to the upper arm.The reporting facility indicated that no additional dose/injection of medication as required.No serious injury or adverse impact to a patient or a user was originally reported.To date, no information has been received to indicate that a user or a patient experienced a death, serious injury, medical intervention, follow-up care, or other adverse health impact associated with the reported problem/issue.No photo or sample were provided for evaluation.Functional testing was performed using product from stock and the reported problem/issue was unable to be confirmed.A definitive root cause was unable to be determined, however, needle insertion location at the upper arm may cause occlusions within the needle and a build up in pressure, thus resulting in fluid back flow.In an abundance of caution, and in response to an fda 483 issued for cfn 1417592 on 22-jan-2024, this medwatch is being filed.If additional relevant information becomes available a supplemental medwatch will be filed.
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