Clinical Pharmacology Details


LIGNOCAINE (LIDOCAINE)


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Indications & Dose:

Infiltration anaesthesia



Adult: Dose to be given according to patient’s weight and nature of procedure; max. 200 mg, maximum dose 500mg if given in solutions containing adrenaline


DOSES AT EXTREMES OF BODY-WEIGHT


When used by local infiltration To avoid excessive dosage in obese patients, weight-based doses for non-emergency indications may need to be calculated on the basis of ideal body-weight.


Intravenous regional anaesthesia and nerve block



Adult: Seek expert advice


Pain relief (in anal fissures, haemorrhoids, pruritus ani, pruritus vulvae, herpes zoster, or herpes labialis)


Lubricant in cystoscopy


Lubricant in proctoscopy


TO THE SKIN USING OINTMENT


Adult: Apply 1–2 mL as required, avoid long-term use Sore nipples from breast-feeding


TO THE SKIN USING OINTMENT


Adult: Apply using gauze and wash off immediately


TOP (jelly): anesthesia of urethra, anesthetic lubricant for endotracheal intubation


Adult and Child


• LOCAL varies with procedure, degree of anesthesia desired, vascularity of tissue, duration of anesthesia required, and physical condition of patient; max 4.5 mg/kg/dose, do not repeat within 2 hr


• TOP apply to affected area prn, max 3 mg/kg/ dose, do not repeat within 2 hr

Contraindications:

 Hypersensitivity to amide anesthetics, heart block (large doses), septicemia (spinal anesthesia); ophth use (top preparations), spinal anesthesia (preparations containing preservatives) 

Side Effects:

CNS: Anxiety, disorientation, drowsiness, loss of consciousness, restlessness, seizures, shivering, tremors


CV: Bradycardia, cardiac arrest, dysrhythmics, hypertension., hypotension, myocardial depression


EENT: Blurred vision; pupil- constriction, tinnitus


GI: Nausea, vomiting


RESP: Respiratory arrest, status asthmaticus


SKIN: Allergic reactions, burning, edema, irritation, rash, sensitization (top), skin discoloration at inj site, tissue necrosis; urticaria 

Cautions:

Precautions:

Inflammation, sepsis, shock,


elderly, children, severe liver disease.


Breastfeeding: use with caution.


Old age: May be used.


Pregnancy: May be used

Interaction:

 


Drugs


Disopyramide: Induction of dysrhythmia or heart failure in predisposed patients


Metoprolol, nadolol, propranolol, cimetidine: Increased serum lidocaine concentrations

Warnings:

Adverse Effects:

Lactations:

Special Precautions:

Counselling:

Side Effects Or Adverse Reactions:

Patient And Carer Advice: