All of the following statements about lignocaine are true except
All local anesthetics are weak bases.These drugs act by penetrating the axonal membrane and blocking the voltage gated sodium channels within Vasoconstrictors like adrenaline can prolong the duration of action. All LA can cause cardiotoxicity and neurotoxicity
It blocks active sodium channels with more affinity than resulting sodium channels
It can cause cardiotoxicity
It is given orally for treatment of cardiac arhymias
Adrenaline increases the duration of action of lignocaine when used for infiltration anesthesia
Anesthesia