Medicines & You

= Chemical Compound
= Indications
= Dosage
= Contraindication
= Special Precautions
= Adverse Reactions
= Drug-Drug Interaction

Anaesthetics - Local & General

Propofol.
Induction & maintenance of general anaesth, sedation of ventilated patients receiving intersive care & conscious sedation for surgical & diagnostic procedures.
Child< 3 yr.
Cardiac, resp, renal or hepatic impairment; hypovolaemic or debilitated patients; disorders of fat metabolism or conditions where lipid emulsions should be used cautiously. Monitor blood lipids in patients at risk. Do not use in pregnancy, has been used for termination in 1st trimester. Ability to drive or operate machinery may be affected. Do not use for obstetric anaesth. Bradycardia. Possible risk of convulsion if administered to an epileptic patient. Monitor signs of hypotension, airway obstruction & oxygen desaturation.
Hypotension, transient apnoea, post-op fever. Rarely, epileptiform movements including convulsions & opisthotonus; nausea, vomiting, post-op headache. Rarely, discoloration of urine, thrombosis & phlebitis. Pulmonary edema. Very rarely, anaphylaxis which may include bronchospasm, erythema & hypotension. Pain on inj. Sexual disinhibition on recovery from anaesth.

Halothane.
General anesth.
Unexplained jaundice & pyrexia following previous exposure to halothane.
Avoid repeated exposure w/in 3 mth. Maintain in lightest plane possible in obstetric procedures. Use moderate hyperventilation during neurosurgery. Ensure adequate room ventilation. Pregnancy & lactation. May impair ability to drive or operate machinery. Pheochromocytoma, myasthenia gravis.
Bradycardia & hypotension during induction. Cardiac arrhythmias during anesth. Rarely, malignant hyperpyrexia. Liver damage. Shivering during recovery. Post-op nausea & vomiting.
Potentiates action of nondepolarizing muscle relaxants. Adrenaline, other sympathomimetics & aminophylline & theophylline may precipitate arrhythmias.

Lidocaine.
Vasal procedures, oral & dental procedure, procedures in the oropharynx, procedures in the larynx, trachea & bronchi, O & G, Laryngotracheal use, nasal, oral & oropharyngeal use.
Observe systemic status of the patient. Use lowest possible conc & dosage. Avoid contact w/ eyes. Patients w/ wound or traumatized mucosa in the region of application. CV disease & heart failure, partial or complete heart attack, elderly & patients in poor general health, patients w/ low protein-binding capacity or nephritic syndrome, advanced liver disease. May impair ability to drive or operate machinery.
CNS effects, circumoral paraesthesia, numbness of the tongue, light-headedness, hyperacusis, tinnitus. CV effect: severe hypotension, bradycardia, arrhythmia, CV collapse.
Other local anaesth, agents structurally related to amide-type local anaesth.