Stable, highly pure L-cysteine compositions for injection and methods of use

  • US 10,653,719 B1
  • Filed: 01/27/2020
  • Issued: 05/19/2020
  • Est. Priority Date: 01/15/2019
  • Status: Active Grant
First Claim
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1. A solution of L-cysteine comprising,a pharmaceutically acceptable carrier,about 50 mg/mL of L-cysteine hydrochloride monohydrate, or equivalent amount of a pharmaceutically acceptable L-cysteine or a salt or hydrate thereof,less than about 150 ppb of aluminum,a pH from about 1.0 to about 2.5, andwherein the solution is substantially free of visually detectable particulate matter and suitable for use as an additive in a parenteral nutrition composition for administration to an individual.

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