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Monitoring of drug levels

  • US 4,658,833 A
  • Filed: 03/05/1984
  • Issued: 04/21/1987
  • Est. Priority Date: 03/08/1983
  • Status: Expired due to Fees
First Claim
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1. A method of determining the concentration of a selected drug in the body of a subject comprising the steps of holding a liquid collecting means comprising an absorbent substantially inert member in a position in close proximity to an eye of the patient so as to contact surface tear fluid in the eye for collecting tear fluid therefrom;

  • allowing the tear fluid collected to come into contact with reagent means for reacting with said selected drug so as to produce, after a predetermined time interval, a physically detectable change dependent, at least semi-quantitatively, upon the concentration of said drug; and

    determining the physical change in said reagent after a predetermined interval of time.

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  • 2 Assignments
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