Cathejell With Lidocaine Overdosage

As this medicine is administered by a doctor or medically trained nursing staff, no overdose is likely. However, should an overdose occur, e.g. if the amount of gel used has not been optimally adjusted to suit the patient's needs, if a large amount of gel gets into the bladder, or if the patient's mucous membranes are inflamed, ulcerous or injured, this can lead to increased absorption of lidocaine, resulting in disturbances of the central nervous system or cardiovascular system. In particular, this also applies if the patient has been using other local anaesthetics at the same time.
Excitation/depression of the central nervous system may occur in the event of an overdose, which may manifest as symptoms such as nervousness, dizziness, drowsiness and trembling. First signs of an overdose may be numbness of the tongue, eye twitching, dizziness or tiredness.
Side effects of the cardiovascular system, such as slowed pulse, poor heart function or a drop in blood pressure, normally occur only at very high blood concentrations of lidocaine.
Respiratory paralysis and cardiovascular failure may occur in the event of a massive overdose with lidocaine.
If signs of an overdose occur, consult a doctor immediately.
If the patient has any further questions on the use of this product, ask the doctor or pharmacist.
Emergency procedures in the event of an overdose: Treatment of intoxication in the CNS region (convulsions, CNS depression) or the cardiovascular system symptomatic, e.g. with administration of anticonvulsants and/or emergency cardiopulmonary support: immediate suspension of lidocaine administration; maintenance of airway patency; oxygen administration until all vital functions have normalised; monitoring of blood pressure, pulse and pupil width.
Other possible countermeasures: For acutely serious hypotension: elevation of the legs and slow IV injection of a beta-sympathomimetic (e.g. 10-20 drops per minute of a 1 mg isoprenaline solution in 200 ml glucose solution 5%) and additional volume substitution.
For increased vagal tone (bradycardia), 0.5-1.0 mg atropine is administered IV.
Convulsions lasting for more than 30 seconds are treated by administering an anticonvulsant (thiopental sodium 1-3 mg/kg IV or diazepam 0.1 mg/kg BW IV).
Persistent seizures can be controlled by injecting a muscle relaxant (e.g. succinylcholine (suxamethonium) 1 mg/kg BW).