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Compounds and compositions for delivering active agents

  • US 6,525,020 B2
  • Filed: 10/31/2001
  • Issued: 02/25/2003
  • Est. Priority Date: 02/07/1997
  • Status: Expired due to Term
First Claim
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1. A composition comprising:

  • (A) at least one active agent; and

    (B) a compound having the following formula embedded imageor a salt thereof.

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