Amiodarone must not be used in: hypersensitivity to amiodarone or to any of the other excipients; sinus bradycardia (less than 55 pulse beats per minute); all forms of delayed conduction (sinoauricular and nodal conduction delay) including sick sinus syndrome, AV-blocks of second and third degrees as well as bifascicular and trifascicular blocks if no pacemaker is used; thyropathy; pre-existing QT prolongation; hypokalaemia; allergy to iodine; concomitant treatment with MAO inhibitors; concomitant treatment with medicinal products which may induce torsades de pointes (see also Interactions); pregnancy, unless clearly indicated (see Use in Pregnancy & Lactation); lactation (see Use in Pregnancy & Lactation).