U.S. patents available from 1976 to present.
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Acetamide derivative having defined particle size

Patent 5618845 Issued on April 8, 1997. Estimated Expiration Date: Icon_subject October 6, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

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Nitrofurantoin sustained release tablet
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Levorotatory isomer of benzhydrylsulfinyl derivatives
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Solid drug preparations containing micronized crystals of ebselen
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Inventors

Application

No. 319124 filed on 10/06/1994

US Classes:

514/618, Sulfur in R424/489Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)

Examiners

Primary: Rose, Shep K.

Attorney, Agent or Firm

Foreign Patent References

  • 233106 EP. 08/13/1987
  • 462004 EP. 12/13/1991
  • 547952 EP. 06/13/1993
  • 594507 EP. 04/13/1994
  • 94/21371 WO. 09/13/1994
  • WO94/21371 WO. 09/13/1994
  • 95/1171 WO. 01/13/1995
  • 95/00132 WO. 01/13/1995
  • 85/12944 WO. 02/13/1996

International Classes

A61K 009/14
A61K 031/16

Abstract

Pharmaceutical compositions comprising modafinil in the form of particles of defined size. The particle size of modafinil can have a significant effect on the potency and safety profile of the drug.

Other References

  • Remington's Pharmaceutical Sciences 16th Ed (1980) pp. 1355-1368, 305-306, 1535-1545
  • Shepherd Othero Sclerosis 110/Suppl !555-563(1994) Micronized Lenojitrate
  • Kondo Biol. Pharm Bull. 16(8):746-800 (1993) HO-221-A Micronized Poorly Solable Drug
  • Carlson et al Clin. Ther. 15(5):788-796 (1993) Micronized Glyburide
  • Treffel et al Acta Derm. Venerol. 72(1):65-67 (1992) Micronized 5-Methoxypsoralen
  • Hargrove et al AM. J. Abstrt. Gynecol. 161(4):948-951 (1989) Micronized Progesterone
  • Stock et al Bor. J. Dermatol. 112(4):469-473 (1985) Micronized 5-Methoxypsorale
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  • Lavharanta et al Arch. Dermatol. Res. 273(1/2) 111-114 (1982) Micronized 8-Methoxypsoralen
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  • Becue T. et al.; "Confirmation of the Structure of By-Products in the Synthesis of Modafinil by Liquid Chromatography-Mass Spectrometry"; J. Chromatography 557:489-494 (1991)
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  • Moachon G. et al.; "Simultaneous Determination of Modafinil and its Acid Metabolite by High-Performance Liquid Chromatography in Human Plasma"; J. Chromatography B 654:91-96 (1994)
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