Beta-adrenergic blockers Increased lidocaine levels.
Cimetidine Decreased lidocaine Cl.
Class I antiarrhythmic agents (eg, mexiletine, tocainide) Toxic effects are additive and potentially synergistic.
Procainamide Additive neurological and cardiac effects.
Succinylcholine Prolongation of neuromuscular blockade.
Incompatibility Amphotericin B, cephalosporins (parenteral), doxycycline, epinephrine, isoproterenol, methohexital, nitroprusside, norepinephrine, phenytoin, sodium bicarbonate, sulfadiazine.
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