I wouldnt use it after 12-24 hours, but it may also depend on your facility policy if this is for a patient. If you are at home and this is for yourself or a family member, I would say dont use it after 24 hours, 12 if it is non preservative lidocaine. Even if there are preservatives, one has to consider that you are drawing it up into a new container (the syringe) and even with asceptic technique, you still risk contamination any time you are drawing something up so the longer it is in a syringe, the more bacteria can grow. It can also depend on what you are using it for. Are you injecting as a local or what?
- Lidocaine Information for Consumers
- Lidocaine Information for Healthcare Professionals (includes dosage details)
- Side Effects of Lidocaine (detailed)
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