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Giving local anesthesia to patients with liver disease can have significant consequences. Thorough evaluation of the disease should be carried out to assess potential risk to the patient as in significant liver dysfunction, the half-life of amide local anesthetic agents may be drastically increased thus increasing the risk of overdose.
Amide local anesthetics are generally heat-stable, with a long shelf life (around two years). Amides have a slower onset and longer half-life than ester anesthetics, [4] and are usually racemic mixtures, with the exception of levobupivacaine (which is S(-) -bupivacaine) [4] and ropivacaine (S(-)-ropivacaine).
Local anesthetic injections are given in specific areas of the mouth, rather than the whole body. Although several different medications are available, the most commonly used local anesthetic to prevent pain in the area around a tooth is lidocaine (also called xylocaine or lignocaine). Lidocaine's half-life in the body is about 1.5–2 hours. [2]
Lidocaine, also known as lignocaine and sold under the brand name Xylocaine among others, is a local anesthetic of the amino amide type. [10] It is also used to treat ventricular tachycardia and ventricular fibrillation.
Articaine is a dental amide-type local anesthetic. It is the most widely used local anesthetic in a number of European countries [2] and is available in many countries. It is the only local anaesthetic to contain a thiophene ring, meaning it can be described as 'thiophenic'; this conveys lipid solubility. [3]
This is a list of local anesthetic agents. Not all of these drugs are still used in clinical practice and in research. Some are primarily of historical interest.
Local anesthesia, in a strict sense, is anesthesia of a small part of the body such as a tooth or an area of skin. Regional anesthesia is aimed at anesthetizing a larger part of the body such as a leg or arm. Conduction anesthesia encompasses a great variety of local and regional anesthetic techniques.
Ropivacaine / r oʊ ˈ p ɪ v ə k eɪ n / is a local anaesthetic drug belonging to the amino amide group. The name ropivacaine refers to both the racemate and the marketed S-enantiomer. Ropivacaine hydrochloride is commonly marketed by AstraZeneca under the brand name Naropin.