Some states have a longer statute of limitations. In that case, you should keep your tax records for as long as the statute of limitations is still open for a particular tax return. The statute of limitations gives the IRS three years to audit your tax return.
Lidocaine, also known as xylocaine and lignocaine, is a medication used to numb tissue in a specific area and to treat ventricular tachycardia. It can also be used for nerve blocks.
Quick Answer. The effects of lidocaine usually last for about 20 minutes, according to MedicineNet. Lidocaine is injected to numb an area before a procedure.