Lidocaïne Hcl Baxter (Lidocaine Hydrochloride)

Lidocaine Hydrochloride is used in clinical settings to provide local anesthesia and to treat certain cardiac rhythm disturbances.

• Local anesthesia: produces reversible loss of sensation in the targeted area for dental, dermatologic or minor surgical procedures.
• Ventricular arrhythmias: stabilizes cardiac membranes to suppress abnormal ventricular rhythms.
• Procedural sedation: facilitates pain‑free performance of short, invasive interventions.

• Lidocaine Hydrochloride blocks voltage‑gated sodium channels on neuronal and cardiac cell membranes, preventing the rapid influx of sodium ions that initiates and propagates action potentials. This inhibition reduces nerve impulse conduction, producing local anesthesia, and stabilizes cardiac myocyte membranes, decreasing excitability and suppressing abnormal ventricular activity.

Lidocaine Hydrochloride may cause a range of adverse reactions, most of which are dose‑related and transient.

Common Side Effects

• Tingling or numbness at the injection site
• Light‑headedness or dizziness
• Nausea or metallic taste
• Mild hypotension

Serious or Rare Side Effects

• Cardiac arrhythmias or conduction block
• Seizures, especially with rapid intravascular injection
• Methemoglobinemia
• Severe allergic reactions including anaphylaxis
• Respiratory depression or cardiovascular collapse

When using Lidocaine Hydrochloride, clinicians should observe several safety measures.

• Cardiac assessment: evaluate history of heart block or ischemia before administration.
• Blood pressure monitoring: watch for hypotension during and after injection.
• Incremental dosing: administer slowly and titrate to effect to avoid toxicity.
• Hypersensitivity: avoid in patients with known allergy to amide‑type local anesthetics.
• Hepatic function: consider dose adjustment in severe liver impairment.
• Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Lidocaine Hydrochloride can interact with other medicines, altering its efficacy or safety.

Major Interactions (Avoid)

• Class I anti‑arrhythmics (e.g., quinidine, procainamide): may increase lidocaine toxicity.
• CYP3A4 inhibitors (e.g., amiodarone, ketoconazole): raise plasma concentrations.
• Other local anesthetics: additive neuro‑cardiac toxicity.

Moderate Interactions (Monitor Closely)

• Beta‑blockers: may potentiate bradycardia.
• Diuretics (e.g., furosemide): can enhance hypotensive effect.
• Propofol or other sedatives: monitor for synergistic CNS depression.