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Poisoning monographs

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The most common drugs ingested which prolong QRS and QT intervals and cause bradyarrhythmias are:

# These drugs may also cause tachyarrhythmias
* These drugs are often referred to as having ' quinidine-like' effects, 'membrane-stabilising' properties or 'nonspecific toxicity'.

Features that help to differentiate between these drugs are:

It is important to try to make the correct diagnosis, as there are often specific treatments available.

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