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Tonocard

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Tonocard

Discontinued Warning IconPlease Note: This Brand Name drug is no longer available in the US.
(Generic versions may still be available.)

OVERDOSE

The initial and most important signs and symptoms of. overdosage would be expected to be related to the central nervous system. Other adverse reactions, such as gastrointestinal disturbances, may follow. (See ADVERSE REACTIONS.)

Should convulsions or cardiopulmonary depression or arrest develop, the patency of the airway and adequacy of ventilation must be assured immediately. Should convulsions persist, despite ventilatory therapy with oxygen, small increments of anticonvulsive agents may be given intravenously. Examples of such agents include a benzodiazepine (e.g., diazepam), an ultrashort-acting barbiturate (e.g., thiopental or thiamylal), or a short-acting barbiturate (e.g., pentobarbital or secobarbital).

The oral LD50 of tocainide was calculated to be about 800 mg/kg in mice, 1000 mg/kg in rats, and 230 mg/kg in guinea pigs; deaths were usually preceded by convulsions.

Studies in normal individuals to date indicate that tocainide has a hemodialysis clearance approximately equivalent to its renal clearance.

CONTRAINDICATIONS

Patients who are hypersensitive to this product or to local anesthetics of the amide type.

Patients with second or third degree atrioventricular block in the absence of an artificial ventricular pacemaker.

Last reviewed on RxList: 12/8/2004
This monograph has been modified to include the generic and brand name in many instances.

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