Lidocain-Hcl B. Braun (Lidocaine Hydrochloride Monohydrate)

Lidocaine is a local anesthetic used in several procedural pathways to achieve temporary loss of sensation.

• Epidural analgesia: provides pain relief during labor or postoperative periods by blocking spinal nerve transmission.
• Infiltration anesthesia for minor surgical procedures: numbs targeted tissue to allow minor incisions without systemic analgesia.
• Intradermal skin testing: creates a localized, short‑lasting numb area for allergy or diagnostic skin tests.
• Subcutaneous local anesthesia: facilitates minor injections or suturing by anesthetizing the subdermal layer.

• Lidocaine acts by reversibly binding to voltage‑gated sodium channels on neuronal membranes, stabilizing the inactive state of the channel. This inhibition prevents the rapid influx of sodium ions required for depolarization, thereby blocking the initiation and propagation of nerve impulses and producing localized loss of sensation.

Lidocaine may cause a range of adverse reactions, most of which are mild and transient.

Common Side Effects

• Burning or stinging at the injection site
• Mild dizziness or light‑headedness
• Transient visual disturbances
• Nausea or mild gastrointestinal upset
• Localized swelling or erythema

Serious or Rare Side Effects

• Cardiovascular depression or arrhythmias
• Central nervous system toxicity (e.g., seizures, loss of consciousness)
• Severe allergic reactions (anaphylaxis, angioedema)
• Methemoglobinemia
• Persistent numbness beyond the expected duration

When using lidocaine, clinicians should observe several safety measures.

• Patient assessment: evaluate cardiac history and allergy status before administration.
• Dosage limits: adhere to recommended maximum doses to avoid systemic toxicity.
• Monitoring: observe for signs of CNS or cardiovascular effects during and after injection.
• Drug interactions: review concomitant medications that may potentiate lidocaine toxicity.
• Special populations: use caution in pediatric, geriatric, or hepatic‑impaired patients.

Store below 25°C: keep in the original container, protect from moisture and direct sunlight.

Lidocaine can interact with other agents that affect cardiac conduction or metabolism.

Major Interactions (Avoid)

• Class I antiarrhythmics (e.g., quinidine, procainamide): additive cardiac depressant effects.
• Beta‑blockers: may enhance bradycardia and hypotension.
• CYP3A4 inhibitors (e.g., ketoconazole): increase systemic lidocaine levels.

Moderate Interactions (Monitor Closely)

• Other local anesthetics: risk of cumulative toxicity.
• Diuretics (e.g., furosemide): may potentiate hypotensive response.
• Anticonvulsants: may lower seizure threshold when lidocaine levels rise.