Large U.S. corporations also play a major role on the global stage, with more than a fifth of companies on the Fortune Global 500 coming from the United States. Even though the services sector is the main engine of the economy, the U.S. also has an important manufacturing base, which represents roughly 15% of output.
A: Lidocaine is an anesthetic or numbing agent when used topically or injected in the spinal column, and it is an antiarrhythmic (helps with irregular heart beats) when given intravenously. When it is used topically on the skin, it works by inhibiting the nerve impulses that pass along pain signals to the brain.
1 Lidocaine is mostly used to numb pain. 2  It is in a class of medicines called local anaesthetics. 3  In general this drug is used to relieve pain from minor ailments. 4  It is applied externally to the painful area. 5  Also, it may be injected as a local anaesthetic in small operations and procedures.ell your doctor immediately if you develop any of the following symptoms after a spinal injection of lidocaine: 1  pain or numbness in the back or lower legs, trouble walking, difficulty controlling your bladder or bowels, light-headedness, faintness, or slow heart rate or pulse.