Breaking the pill would cause too much of the drug to be released at one time.

Crushing or chewing the medicine pellets would cause too much of the drug to be released at one time, which may cause a life-threatening overdose.

Breaking the pill may cause too much of the drug to be released at one time, which could increase side effects including seizures.

Overdosing on SNRIs can be caused by either drug combinations or excessive amounts of the drug itself.