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Controlled release hydrocodone formulations

  • US 8,980,291 B2
  • Filed: 12/30/2010
  • Issued: 03/17/2015
  • Est. Priority Date: 10/29/1999
  • Status: Expired due to Fees
First Claim
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1. A solid oral twice-a-day controlled-release dosage form, whereinthe dosage form is a tablet consisting of(i) a plurality of individually coated multiparticulates consisting of matrices individually coated with a coating consisting of ethylcellulose and a wax, the matrices collectively consisting of from about 5 mg to about 60 mg hydrocodone or an equivalent amount of a pharmaceutically acceptable salt thereof, hydroxypropylmethyl cellulose and ethylcellulose,(ii) hydroxypropylmethyl cellulose,(iii) lactose,(iv) a metal stearate, and(v) a colorant,the individually coated multiparticulates compressed along with hydroxypropylmethyl cellulose, lactose, the metal stearate and the colorant into the tablet,said dosage form, after a first administration to a human patient, providesa plasma concentration of hydrocodone of at least 8 ng/ml at from about 2 to about 8 hours after said administration and a plasma concentration of hydrocodone of at least 6 ng/ml at about 12 hours after said administration, based on oral administration of a dosage form containing 15 mg hydrocodone bitartrate,a C12/Cmax ratio of 0.55 to 0.85, anda therapeutic effect for at least 12 hours,wherein the hydrocodone or pharmaceutically acceptable salt thereof is the only active agent in the dosage form,the metal stearate is magnesium stearate, andthe wax is selected from the group consisting of beeswax, glycowax, castor wax, carnauba wax, and glyceryl behenate.

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