What are the most suitable extended release delivery systems for CNS
penetrating drugs and what companies have proprietary technology of
these technologies?

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Request for Question Clarification by crabcakes-ga on 01 Oct 2004 21:04 PDT

Hi healthcareresearch,

  Could you elaborate a bit more on exactly what you will need in an
answer? Most of the pertinent information on extended release delivery
systems that cross the BBB is proprietary information, and is quite
pricey. Reports I have found range from $995 USD to many thousands of
dollars.

  I have found several articles on methods of delivery, such as using
microspheres, viruses, etc., along with about a dozen companies that
are researching these technologies.

  Would you like me to continue in this direction? It seems this
technology is still undergoing it's early research.

  Regards,
crabcakes

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Clarification of Question by healthcareresearch-ga on 04 Oct 2004 00:40 PDT

We are interested in oral drug delivery systems for CNS penetrating
drugs like (Methylphenidate, Venlafaxina, Alprazolam, Memantime) and
specially Osmotic extended release systems.