Women who are pregnant or may become pregnant are strongly<unk> vised to not take<unk> . Since<unk>  can be expressed in breast milk, women taking<unk>  are<unk> vised to stop nursing. It is contraindicated in individuals with sinus nodal bradycardia, atrioventricular block, and second or third degree heart block who do not have an artificial pacemaker. Individuals with baseline depressed lung function should be monitored closely if<unk>  therapy is to be initiated. Formulations of<unk>  that contain benzyl alcohol should not be given to neonates, because the benzyl alcohol may cause the potentially fatal "gasping syndrome".<unk>  can worsen the cardiac arrhythmia brought on by digitalis toxicity.
Amiodarone
Ibutilide
Colestilan
Flecainide
Verapamil
Acecainide
Sotalol
Dofetilide