Posted by djmmm on June 26, 2003, at 19:36:37
In reply to Re: Wellbutrin XL vs. SR, posted by paxvox on June 26, 2003, at 19:05:43
> Patent for the formulation of Wellbutrin has already expired. It is already available in the US as a generic (bupropion). Could be like the Celexa- Lexapro situation. Some SAY it is a NEW drug because of the pending expiration of Celexa's formulation, where others claim it's basically the same med (see posts regarding this in archieves). Personally, I see not need for any once a day formulation, if that's what it is, unless it would be cheaper for the patient. I have no problem taking two SR tabs per day, as a matter of fact, that way I can control WHEN I take the second dose so that it is not too close to my bedtime.
>
> PAXIt is simply a clever marketing ploy, to avoid loss of sales. In fact, the FDA originally declined GlaxoSmithKline's "new" wellbutrin because it was the same slow release drug with a different name. Andrx Corp, the company that will make the generic version of the original wellbutrin SR has been experiencing production problems, GSK hopes to unveil the "new" wellbutrin before the generic sr is released.
Apparently, the FDA changed it's opnion when GSK presented new labeling for the "new" wellbutrin, which declares it a "once daily" medication devoid of the insomnia side-effects associated with the 2x day SR version....I suppose the "new" wellbutrin will come in a higher dose and be released "slower" than the sr version...
poster:djmmm
thread:237278
URL: http://www.dr-bob.org/babble/20030624/msgs/237337.html