The role of sodium bisulphate in a L.A solution is:
Reducing agent (Ref: Malamed-4th Ed/Pg 274) Contents of LA caridge: Ingredient Function Local anesthetic agent (Lignocaine) Conduction blockade Vasoconstrictor (adrenalin) |es absorption of LA anesthesia & toxicity Sodium sulphide Antioxidant for vasoconstriction Methyl paraben Preservative Sodium chloride Isotonicity of solution Sterile water Diluent
Reducing agent
Aesthetic agent
Vasoconstrictor
Preservative