The anesthetics are a supplied items and the complaint notification was forwarded to the supplier.Batch record review performed by the supplier for bupivacaine (marcaine) lot #'s 582453a and 511603a revealed no discrepancies that may have contributed to a complaint of this nature.Final release potency testing for all drug components was performed and was within specification requirements.In addition the supplier tested retains and returned samples.All samples met specification requirements.Possible causes of lack of effect may be administration technique or patient anatomical variations, including pathological or psychological factors.The complaint could not be confirmed.
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