This information is intended solely for healthcare professionals:
Posology
For all populations, the lowest effective dose should be used. The required dose should be determined on an individual basis.
For routine procedures, the normal dose for adult patients is 1 cartridge, but the contents of less than one cartridge may be sufficient for effective anesthesia. According to the dentist's judgment, more cartridges may be required for more extensive procedures, without exceeding the recommended maximum dose.
For most routine dental procedures, Septanest with adrenaline 40 mg/ml + 5 micrograms/ml is preferred.
For more complex procedures, such as pronounced hemostasis, Septanest with adrenaline 40 mg/ml + 10 micrograms/ml solution is preferred.
Concomitant use of sedatives to reduce patient anxiety:
The maximum safe dose of local anesthetic may be reduced in sedated patients due to an additive effect on central nervous system depression.
Adults and adolescents (between 12 and 18 years of age)
In adults and adolescents, the maximum dose of articaine is 7 mg/kg, with a maximum absolute dose of articaine of 500 mg. The maximum dose of articaine of 500 mg corresponds to a healthy adult of more than 70 kg body weight.
Children (between 4 and 11 years of age)
No safety data are available for children aged 4 years and younger. No data are available.
The amount to be injected should be determined by the child's age and weight and the magnitude of the operation. The average effective dose is 2 mg/kg and 4 mg/kg for simple and complex procedures, respectively. The lowest effective dose should be used. In children aged 4 years (or weighing 20 kg or more), the maximum dose of articaine is only 7 mg/kg, with a maximum absolute dose of 385 mg of articaine for a healthy child weighing 55 kg.
Special populations
Older patients and patients with renal impairment:
Due to the lack of clinical data, special precautions should be taken to administer the lowest effective dose in older patients and patients with renal impairment.
High plasma levels of the drug may occur in these patients, especially after repeated use. In case of requiring re-injection, the patient should be closely monitored to identify any signs of relative overdose.
Patients with hepatic impairment
For patients with hepatic impairment, special precautions should be taken to administer the lowest effective dose, especially after repeated use, although 90% of articaine is first inactivated by non-specific tissue and blood esterases.
Patients with plasma cholinesterase deficiency
High plasma levels of the drug may occur in patients with plasma cholinesterase deficiency or under treatment with cholinesterase inhibitors, as the product is inactivated in 90% by plasma esterases. Therefore, the lowest effective dose should be used.
Administration form
Infiltration and perineural route in the oral cavity.
If there is inflammation and/or infection at the injection site, local anesthesia should be injected with caution. The injection rate should be very slow (1 ml/min).
Precautions to be taken before handling or administering the medication
This medication should only be used by a doctor or dentist with sufficient training and familiar with the diagnosis and treatment of systemic toxicity, or under their supervision. Before inducing regional anesthesia with local anesthetics, it should be ensured that a resuscitation team and appropriate medication are available for immediate treatment of any emergency respiratory or cardiovascular event. The patient's level of consciousness should be monitored after each injection of local anesthesia.
When using Septanest with adrenaline for infiltration or regional anesthesia block, the injection should always be administered slowly and with prior aspiration.
Special warnings
Adrenaline reduces blood flow to the gums, which may cause local tissue necrosis.
Rare cases of prolonged or irreversible nerve damage and taste loss have been reported after mandibular block anesthesia.
Precautions for use
Risk associated with accidental intravascular injection:
An accidental intravascular injection may cause high levels of adrenaline and articaine in the systemic circulation.This may be associated with severe adverse reactions, such as convulsions, followed by central nervous system and cardiovascular depression, and coma, which progresses to respiratory and cardiac arrest.
To ensure that the needle does not penetrate a blood vessel during injection, aspiration should be performed before injecting the local anesthetic. However, the absence of blood in the syringe does not guarantee that an intravascular injection has not occurred.
Risk associated with intraneural injection:
An accidental intraneural injection may cause the drug to move retrogradely along the nerve.
To avoid intraneural injection and prevent nerve damage when performing nerve blocks, the needle should be withdrawn slightly whenever the patient feels a sensation of discharge during injection or if the injection is particularly painful. If nerve damage occurs due to the needle, the chemical neurotoxicity of articaine and the presence of adrenaline may exacerbate the effect, as adrenaline may reduce perineural blood flow and prevent local elimination of articaine.
Treatment of overdose
Before administering regional anesthesia with local anesthetics, it should be ensured that a resuscitation team and appropriate medication are available for immediate treatment of any emergency respiratory or cardiovascular event.
According to the severity of the symptoms of overdose, the doctor or dentist should implement protocols that anticipate the need to protect airways and administer assisted ventilation
The patient's level of consciousness should be monitored after each injection of local anesthesia.
If signs of acute systemic toxicity occur, the injection of local anesthetic should be stopped immediately. If necessary, place the patient in a supine position.
CNS symptoms (convulsions, CNS depression) should be treated immediately with appropriate respiratory support and administration of anticonvulsants.
Optimal oxygenation and ventilation, along with circulatory support and treatment of acidosis, may prevent cardiac arrest.
If cardiovascular depression (hypotension, bradycardia) occurs, appropriate treatment with intravenous fluids, vasopressors, or inotropic agents should be considered. Children should receive doses appropriate to their age and weight.
In case of cardiac arrest, immediate cardiopulmonary resuscitation should be performed.
Special precautions for disposal and other handling
This medication should not be used if the solution is turbid or has changed color.
To avoid the risk of infection (e.g., transmission of hepatitis), the syringe and needles used to prepare the solution should always be new and sterile.
The cartridges are for single use. If only part of the cartridge is used, the rest should be discarded.
The disposal of unused medication and all materials that have come into contact with it should be carried out in accordance with local regulations.
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