Effect of the refrigerator storage time on the potency of botox for human extensor digitorum brevis muscle paralysis.

CONCLUSIONS: The potency of reconstituted Botox is not degraded by subsequent refrigeration for 4 weeks. However, there are definite concerns regarding its sterility, and hence its safety, since multiple withdrawals from the same vial over long periods can introduce bacterial contamination. PMID: 23894239 [PubMed]
Source: Journal of Clinical Neurology - Category: Neurology Tags: J Clin Neurol Source Type: research
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