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 is used to relieve nerve pain after shingles (infection with the herpes zoster virus). Learn about side effects, drug interactions, dosages, warnings, and more. Topical lidocaine come in many different forms, such as topical creams, ointment, gels, and foaming soaps, and most are available over the counter. If used as directed, topical lidocaine shouldn't cause many side effects. But if you apply more than recommended, topical lidocaine can cause dizziness, headache, and confusion. Lidocaine, also known as lignocaine and sold under the brand name Xylocaine among others, is a local anesthetic of the amino amide type. [12] It is also used to treat ventricular tachycardia and ventricular fibrillation. [9][10] When used for local anaesthesia or in nerve blocks, lidocaine typically begins working within several minutes and lasts for half an hour to three hours. [10][11. Lidocaine injection: side effects, dosage, interactions, FAQs, reviews. Used for: anesthesia, arrhythmia, burning mouth syndrome, costochondritis, ventricular. Description Lidocaine injection is used to cause numbness or loss of feeling for patients having certain medical procedures (by blocking certain nerves using the brachial plexus, intercostal, lumbar, or epidural blocking techniques). Lidocaine is a local anesthetic. It prevents pain by blocking the signals at the nerve endings in the skin. Lidocaine can cause serious side effects, especially in children, if it gets into the mouth and is swallowed. If you are using the viscous topical solution medicine in the mouth or throat, be aware of signs of toxicity. Find patient medical information for Lidocaine transdermal on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Find patient medical information for Lidocaine (mucous membranes) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Lidocaine topical side effects Get emergency medical help if you have signs of an allergic reaction: hives, difficult breathing, swelling of your face, lips, tongue, or throat. Lidocaine topical may cause serious side effects. Call your doctor at once if you have: vomiting, fever, chills, sore throat, body aches, unusual tiredness, loss of appetite, bruising or bleeding; sudden dizziness or.