Vignocaine Viscous Special Precautions

If symptoms persist, please consult a doctor.
Patients should strictly adhere to the prescribed dose and frequency of administration to reduce the risk of serious undesirable events with the use of lignocaine. Excessive dosage or short interval between dose can result in high plasma level and serious undesirable effects.
Lignocaine is not suitable for patients with hypovolaemia, heart block or other conduction disturbances.
Lignocaine should be used with caution if mucosa in area of application has been traumatized due to potential for rapid systemic absorption.
Reduced dose should be given to debilitated, elderly patients, acutely ill patients and children according to their age, weight and physical condition.
Lignocaine should be used with caution in patients with congestive heart failure, bradycardia, or respiratory depression.
Lignocaine should be given with caution in patient with hepatic impairment because it is extensively metabolised in liver. Patients with conditions that reduce hepatic blood flow such as cardiac and circulatory failure may have prolonged lignocaine plasma half-life. Metabolites of lignocaine may accumulate in patients with renal impairment.
Lignocaine considered as a potential triggering agent for familial malignant hyperthermia. It has been shown that the use of amide local anaesthetics in malignant hypothermia patients is generally safe, but cases of malignant hyperthermia have been occasionally documented after use.
When used for endotracheal tube lubrication care should be taken to avoid introduction of the viscous solution into the lumen of the tube. The solution may dry on the inner surface leaving residue which tends to clump with flexion, narrowing the lumen. There have been rare reports in which this residue has caused the lumen to occlude.
Lignocaine may impair swallowing and lead to danger of aspiration. Hence, food should not be ingested for 60 minutes after use of lignocaine in mouth or throat area. This is especially important in children because of their frequency of eating.
Numbness of tongue or buccal mucosa may increase danger of biting trauma. For this reason food and/or chewing gum should not be used while the mouth or throat area is anesthetized.
Effects on Ability to Drive and Use Machines: Depending on the dose, local anaesthetics may have a very mild effect on mental function and may temporarily impair locomotion and coordination.