My doctor prescribed Effexor for me today, but before taking my first tablet I've been trying to find out as much as possible about the medication.

The following statement on one of the websites has me quite concerned. Could somebody please clarify this for me?

...one very rare side effect, which Effexor's manufacturer calls "withdrawal syndrome", is that the patient, once acclimatized to Effexor, is unable to discontinue taking the drug. With this discontinuation effect apparently permanent, the patient is "hooked for life".