Lidocaine Aguettant (Lidocaine Hydrochloride)

Lidocaine Aguettant is a local anesthetic and antiarrhythmic agent used in various clinical settings.

• Dental procedures: enables painless tooth extractions, restorations and other oral surgeries.
• Minor surgical procedures: provides surface anesthesia for skin incisions, biopsies and suturing.
• Cardiac arrhythmias: administered intravenously to suppress ventricular ectopic beats and stabilize abnormal heart rhythms.

• Lidocaine blocks voltage‑gated sodium channels on neuronal and cardiac cell membranes, preventing the rapid influx of sodium ions required for depolarisation. This inhibition halts the propagation of nerve impulses and reduces automaticity in cardiac tissue, producing local anaesthesia and antiarrhythmic effects.

Lidocaine may cause a range of adverse reactions, from mild to severe.

Common Side Effects

• Tingling or numbness at the injection site
• Metallic taste in the mouth
• Dizziness or light‑headedness
• Nausea or mild vomiting
• Transient hypotension
• Mild visual disturbances

Serious or Rare Side Effects

• Seizures or convulsions
• Severe cardiac arrhythmias or cardiac arrest
• Respiratory depression or apnea
• Anaphylactic or severe allergic reactions
• Persistent hypotension requiring intervention
• Central nervous system depression leading to coma

Before using Lidocaine Aguettant, consider the following safety measures.

• Allergy assessment: verify no known hypersensitivity to amide‑type local anesthetics.
• Cardiac monitoring: observe heart rhythm and blood pressure during intravenous administration.
• Hepatic function: use caution in patients with liver impairment as metabolism may be reduced.
• Age considerations: adjust dosing for elderly patients due to altered pharmacokinetics.
• Concomitant CNS depressants: avoid or closely monitor when combined with other agents that depress the central nervous system.
• Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Lidocaine can interact with several medications; awareness of these interactions helps minimise risk.

Major Interactions (Avoid)

• Class I antiarrhythmics (e.g., quinidine, procainamide): additive cardiac conduction effects.
• Amiodarone: may increase lidocaine plasma concentrations, raising toxicity risk.
• Cimetidine: inhibits hepatic metabolism, potentially elevating lidocaine levels.

Moderate Interactions (Monitor Closely)

• CYP3A4 inhibitors (e.g., erythromycin, ketoconazole): may modestly raise lidocaine concentrations.
• CNS depressants (e.g., benzodiazepines, opioids): enhanced sedation or respiratory depression.
• Diuretics: may alter electrolyte balance, influencing cardiac response.