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Procaine, an ester anesthetic, is metabolized in the plasma by the enzyme pseudocholinesterase through hydrolysis into para-amino benzoic acid (PABA), which is then excreted by the kidneys into the urine. A 1% procaine injection has been recommended for the treatment of extravasation complications associated with venipuncture, steroids, and ...
Benzonatate is structurally related to anesthetic medications of the para-aminobenzoic acid (PABA) class which includes procaine and tetracaine. [ 3 ] [ 22 ] [ 12 ] Procaine and tetracaine, previously used heavily in the fields of dentistry and anesthesiology , have fallen out of favor due to allergies associated with their metabolites. [ 22 ]
Many local anesthetics fall into two general chemical classes, amino esters (top) and amino amides (bottom). A local anesthetic (LA) is a medication that causes absence of all sensation (including pain) in a specific body part without loss of consciousness, [1] providing local anesthesia, as opposed to a general anesthetic, which eliminates all sensation in the entire body and causes ...
procaine: Novocain, borocaine (procaine borate), ethocaine 1904 (Alfred Einhorn) 1905 (Heinrich Braun) procainamide: proparacaine: proxymetacaine propoxycaine [16] Pyrrocaine [17] quinisocaine dimethisoquin [18] ropivacaine: Naropin 1957 (Ekenstam) 1997 trimecaine: Mesdicain, Mesocain, Mesokain tetracaine: amethocaine, Dicaine, Pontocaine
It is a form of penicillin which is a salt of benzylpenicillin and the local anaesthetic agent procaine. [9] The salt has weak solubility, and is prepared as a suspension. Upon injection it forms a deposit within tissue (a "depot'), and the salt slowly dissolves into interstitial fluid - dissociating the two molecules into their bioactive forms over an extended pe
Severe allergic reactions to anesthetic medications are rare and are usually attributable to factors other than the anesthetic. Neuromuscular blocking agents, natural rubber latex, and antibiotics are the most common causes of serious allergic reactions during surgery. [2] The mortality rate from these reactions ranges between 3-9%. [3]
The effects are varied depending on the particular drug given. When anesthetists administer standard doses of these anesthetic drugs to a person with pseudocholinesterase deficiency, the patient experiences prolonged paralysis of the respiratory muscles, requiring an extended period of time during which the patient must be mechanically ventilated.
Anesthetic risk factors include the use of volatile anesthetics, nitrous oxide (N 2 O), opioids, and longer duration of anesthesia. Patient factors that confer increased risk for PONV include female gender, obesity , age less than 16 years, past history of motion sickness or chemotherapy-induced nausea, high levels of preoperative anxiety , and ...