The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive. Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take. Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur.
Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco. The presence of other medical problems may affect the use of this medicine.
Make sure you tell your doctor if you have any other medical problems, especially:. A nurse or other trained health professional will give you this medicine in a medical facility. It is given through a needle placed into one of your veins, into your upper arm, into the head and neck area, or into the space around the spinal nerves in your lower back. It is very important that your doctor check you or your child's progress closely while you are receiving this medicine to make sure this medicine is working properly.
Blood tests may be needed to check for unwanted effects. This medicine may cause a rare, but serious blood problem called methemoglobinemia. The risk may be increased in children younger than 6 months of age, elderly patients, or patients with certain inborn defects. It is more likely to occur in patients receiving too much of the medicine, but can also occur with small amounts.
Check with your doctor right away if you or your child has the following symptoms after receiving this medicine: pale, gray, or blue-colored skin, lips, or nails, confusion, headache, lightheadedness, fast heartbeat, or unusual tiredness or weakness. If you receive this medicine into your lower back epidural , you may experience temporary loss of sensation and movement, usually in the lower half of your body. Talk with your doctor if you have concerns. Advanced Search. Sign In. Skip Nav Destination Article Navigation.
Close mobile search navigation Article navigation. Volume , Issue 6. Previous Article Next Article. Article Navigation. Correspondence December Accidental Intravascular Injection of Local Anesthetic? Nelson, M. This Site. Google Scholar. Author and Article Information. Lidocaine is an antiarrhythmic medication of the class Ib type. This means it works by blocking sodium channels and thus decreasing the rate of contractions of the heart.
Local neurons cannot signal the brain when it is used locally as a numbing agent. Discovered in , Lidocaine became more publicly available in Xylocaine is one of the brand names it is recognized under.
We understand that a lot of this sounds like rather unnecessary information. When injected, the numbing effects of Lidocaine can begin working very quickly. In as little as four minutes and can last from 30 minutes up to three hours.
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