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Dissolution testing of nitroglycerin tablets

C A Gaglia, J J Lomner, B L Leonard

    Journal of Pharmaceutical Sciences
    |November 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

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    A new dissolution testing method was developed for sublingual nitroglycerin tablets. This electrochemical approach provides rapid and accurate measurement of drug release and content.

    Area of Science:

    • Pharmaceutical Sciences
    • Analytical Chemistry
    • Electrochemistry

    Background:

    • Standard dissolution testing apparatus are unsuitable for sublingual tablets due to their rapid release formulation.
    • Sublingual tablets dissolve quickly in small fluid volumes, necessitating specialized testing methods.
    • Nitroglycerin sublingual tablets require a dissolution test that can measure rapid drug release.

    Purpose of the Study:

    • To develop a simple and effective dissolution test method for sublingual nitroglycerin tablets.
    • To establish a method for instantaneous and continuous measurement of dissolved nitroglycerin.
    • To validate the method for both dissolution profiling and drug content determination.

    Main Methods:

    • A novel electrochemical method utilizing a rotating platinum electrode for reproducible stirring.

    Related Experiment Videos

  • Measurement of nitroglycerin reduction in a buffered isotonic sodium chloride solution.
  • Real-time monitoring of dissolved nitroglycerin via current-time curves.

    • Main Results:

    • The developed system provides instantaneous and continuous measurement of dissolved nitroglycerin.
    • The method is effective over a time frame of seconds to several minutes.
    • The height of the current-time curve directly correlates with the amount of nitroglycerin in solution.

    Conclusions:

    • A simple, reproducible dissolution test method for sublingual nitroglycerin tablets was successfully developed.
    • The electrochemical method allows for rapid assessment of drug release profiles.
    • The method is also suitable for determining the drug content of individual nitroglycerin tablets.