Scandonest Plain
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Questions & Answers
Side Effects & Adverse Reactions
RESUSCITATIVE EQUIPMENT AND DRUGS SHOULD BE IMMEDIATELY AVAILABLE. (See ADVERSE REACTIONS).
Reactions resulting in fatality have occurred on rare occasions with the use of local anesthetics, even in the absence of a history of hypersensitivity.
Fatalities may occur with use of local anesthetics in the head and neck region as the result of retrograde arterial flow to vital CNS areas even when maximum recommended doses are observed. The practitioner should be alert to early evidence of alteration in sensorium or vital signs.
The solution which contains a vasoconstrictor (SCANDONEST 2% L) should be used with extreme caution for patients whose medical history and physical evaluation suggest the existence of hypertension, arteriosclerotic heart disease, cerebral vascular insufficiency, heart block, thyrotoxicosis and diabetes, etc.
The solution which contains a vasoconstrictor (SCANDONEST 2% L) also contains potassium metabisulfite, a sulfite that may cause allergic-type reactions including anaphylactic symptoms and life-threatening or less severe asthmatic episodes in certain susceptible people. The overall prevalence of sulfite sensitivity in the general population is unknown and probably low. Sulfite sensitivity is seen more frequently in asthmatic than in non-asthmatic people. SCANDONEST 3% Plain is SULFITE FREE.
SCANDONEST, along with other local anesthetics, is capable of producing methemoglobinemia. The clinical signs of methemoglobinemia are cyanosis of the nail beds and lips, fatigue and weakness. If methemoglobinemia does not respond to administration of oxygen, administration of methylene blue intravenously 1-2 mg/kg body weight over a 5 minute period is recommended.
The American Heart Association has made the following recommendations regarding the use of local anesthetics with vasoconstrictors in patients with ischemic heart disease: "Vasoconstrictor agents should be used in local anesthesia solutions during dental practice only when it is clear that the procedure will be shortened or the analgesia rendered more profound. When a vasoconstrictor is indicated, extreme care should be taken to avoid intravascular injection. The minimum possible amount of vasoconstrictor should be used." (Kaplan, EL, editor: Cardiovascular disease in dental practice, Dallas 1986, American Heart Association.)
Legal Issues
There is currently no legal information available for this drug.
FDA Safety Alerts
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Manufacturer Warnings
There is currently no manufacturer warning information available for this drug.
FDA Labeling Changes
There are currently no FDA labeling changes available for this drug.
Uses
Mepivacaine is indicated for production of local anesthesia for dental procedures by infiltration or nerve block in adults and pediatric patients.
History
There is currently no drug history available for this drug.
Other Information
Mepivacaine Hydrochloride, a tertiary amine used as a local anesthetic, is 1-methyl-2', 6' - pipecoloxylidide monohydrochloride with the following structural formula:
It is a white, crystalline, odorless powder soluble in water, but very resistant to both acid and alkaline hydrolysis.
Levonordefrin, a sympathomimetic amine used as a vasoconstrictor in local anesthetic solution, is (-)-
-(1-Aminoethyl)-3, 4-dihydroxybenzyl alcohol with the following structural formula:
It is a white or buff-colored crystalline solid, freely soluble in aqueous solutions of mineral acids, but practically insoluble in water;
DENTAL CARTRIDGES MAY NOT BE AUTOCLAVED.
SCANDONEST 3% Plain (mepivacaine hydrochloride injection 3%) and SCANDONEST 2% L (mepivacaine hydrochloride 2% with levonordefrin 1:20,000 injection are sterile solutions for injection.
Sources
Scandonest Plain Manufacturers
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Novocol Pharmaceutical Of Canada, Inc.
![Scandonest Plain (Mepivacaine Hydrochloride) Injection, Solution [Novocol Pharmaceutical Of Canada, Inc.]](/wp-content/themes/bootstrap/assets/img/loading2.gif)
Scandonest Plain | Novocol Pharmaceutical Of Canada, Inc.
As with all local anesthetics, the dose varies and depends upon the area to be anesthetized, the vascularity of the tissues, individual tolerance and the technique of anesthesia. The lowest dose needed to provide effective anesthesia should be administered. For specific techniques and procedures refer to standard dental manuals and textbooks.
For infiltration and block injections in the upper or lower jaw, the average dose of 1 cartridge will usually suffice.
Each cartridge contains 1.7 mL (34 mg of 2% or 51 mg of 3%).
5.3 cartridges (180 mg of the 2% solution or 270 mg of the 3% solution) are usually adequate to effect anesthesia of the entire oral cavity. Whenever a larger dose seems to be necessary for an extensive procedure, the maximum dose should be calculated according to the patient's weight. A dose of up to 3 mg per pound of body weight may be administered. At any single dental sitting the total dose for all injected sites should not exceed 400 mg in adults.
The maximum pediatric dose should be carefully calculated.
Maximum dose for pediatric population =
Child's Weight (lbs.)
150 × Maximum Recommended Dose
for Adults (400 mg)The following table, approximating these calculations, may also be used as a guide. This table is based upon a recommended maximum for larger pediatric population of 5.3 cartridges (the maximum recommended adult dose) during any single dental sitting, regardless of the pediatric patient's weight or (for 2% mepivacaine) calulated maximum amount of drug:
Maximum Allowable Dosage* 3% Mepivacaine 2% Mepivacaine 1:20,000 Levonordefrin 3 mg/lb 3mg/lb (270 mg max.) (180 mg max.) Weight (lb.) mg Number of Cartridges mg Number of Cartridges * Adapted from Malamed, Stanley F: Handbook of medical emergencies in the dental office, ed. 2, St. Louis, 1982. The C.V. Mosby Co. 20 60 1.2 60 1.8 30 90 1.8 90 2.6 40 120 2.3 120 3.5 50 150 2.9 150 4.4 60 180 3.5 180 5.3 80 240 4.7 180 5.3 100 270 5.3 180 5.3 120 270 5.3 180 5.3When using SCANDONEST for infiltration or regional block anesthesia, injection should always be made slowly and with frequent aspiration.
Any unused portion of a cartridge should be discarded.
Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.
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