It is a local anesthetic and cardiac depressant used as an antiarrhythmia agent. Its actions are more intense and its effects more prolonged than those of procaine but its duration of action is shorter than that of bupivacaine or prilocaine. Lidocaine hydrochloride was synthesized by Löfgren and Lundquist in 1943, and was clinically introduced in 1948. It remains one of the most widely used local anaesthetics. It can be administered parenterally for a peripheral nerve block (PNB), intravenously, or applied topically at strengths of 2–4%. Lidocaine is an antiarrhythmic medication of the class Ib type. [11] This means it works by blocking sodium channels thus decreasing the rate of contractions of the heart. [14][11] When injected near nerves, the nerves cannot conduct signals to or from the brain. Lidocaine HCl Injection, USP is a sterile, nonpyrogenic, aqueous solution that contains a local anesthetic agent and is administered parenterally by injection. See INDICATIONS for specific uses. Lidocaine skin patch is used to relieve nerve pain caused by herpes zoster or shingles (postherpetic neuralgia). Lidocaine belongs to the family of medicines called local anesthetics. This medicine prevents pain by blocking the signals at the nerve endings in the skin. Lidocaine topical is a local anesthetic (numbing medication). There are many brands and forms of lidocaine topical available. Not all brands are listed on this leaflet. Lidocaine topical (for use on the skin) is used to provide temporary relief of muscle or joint pain or discomfort. Learn about lidocaine viscous 2% usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. Lidocaine hydrochloride injection, USP is sterile, nonpyrogenic, aqueous solution that contains a local anesthetic agent and is administered parenterally by injection. Lidocaine Hydrochloride is used to numb an area of your body to help reduce pain or discomfort caused by invasive medical procedures such as surgery, needle punctures, or insertion of a catheter or breathing tube. What is lidocaine injection? Lidocaine is a local anesthetic (numbing medication) that is used to numb an area of your body to help reduce pain or discomfort caused by invasive medical procedures such as surgery, needle punctures, or insertion of a catheter or breathing tube.