Mepivastesin (Mepivacaine Hydrochloride)

Mepivacaine is a local anesthetic used to block nerve conduction in dental and minor surgical settings.

• Dental procedures requiring local anesthesia: provides painless treatment by numbing oral tissues.
• Minor surgical procedures requiring infiltration anesthesia: enables localized numbness for small incisions or tissue manipulation.
• Endodontic therapy: allows painless root canal treatment by anesthetizing the pulp and surrounding structures.

• Mepivacaine hydrochloride reversibly blocks voltage‑gated sodium channels on neuronal membranes, preventing the initiation and propagation of action potentials. This inhibition stops nerve impulse transmission in the targeted area, resulting in a temporary loss of sensation without affecting consciousness.

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

Common Side Effects

• Transient numbness or tingling at the injection site
• Mild dizziness or light‑headedness
• Headache
• Metallic taste in the mouth
• Mild swelling or bruising at the injection site
• Nausea

Serious or Rare Side Effects

• Allergic reaction including anaphylaxis
• Cardiovascular toxicity such as arrhythmia or hypotension
• Central nervous system toxicity including seizures
• Methemoglobinemia
• Prolonged or unexpected numbness
• Tissue necrosis at the injection site

Before using Mepivastesin, clinicians should consider several safety measures.

• Allergy assessment: verify no known hypersensitivity to amide‑type local anesthetics.
• Cardiac risk: avoid or use with caution in patients with severe cardiac disease.
• Dose minimisation: employ the lowest effective volume for the procedure.
• Pregnancy and lactation: safety data are limited; use only if clearly needed.
• Monitoring: observe for signs of CNS or cardiovascular toxicity during and after administration.
• Store at room temperature: keep in the original container, protect from light and moisture.

Mepivastesin can interact with other drugs that affect cardiac or nervous system function.

Major Interactions (Avoid)

• Class I antiarrhythmic agents (e.g., procainamide): may increase systemic toxicity.
• Monoamine oxidase inhibitors combined with vasoconstrictors: risk of hypertensive crisis.
• High‑dose epinephrine-containing solutions: can cause severe cardiovascular stress.

Moderate Interactions (Monitor Closely)

• Concurrent use of other local anesthetics: cumulative toxicity risk.
• Tricyclic antidepressants: may enhance CNS effects.
• Carbamazepine or other sodium‑channel blockers: potential additive nerve block.
• Lithium therapy: increased risk of neurotoxicity.