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[Stability of pantoprazole in parenteral nutrition units]

E Valverde Molina1, V González Muñiz, J Gómez-Maldonado

  • 1Servicio de Farmacia. Hospital Carlos Haya. Málaga. España. esteban.valverde.sspa@juntadeandalucia.es

Farmacia Hospitalaria : Organo Oficial De Expresion Cientifica De La Sociedad Espanola De Farmacia Hospitalaria
|January 20, 2009
PubMed

Insights

Pantoprazole is unstable in parenteral nutrition units (PNU). Studies show over 50% degradation within 24 hours, risking patient under-dosing and unknown side effects from degradation products.

Area of Science:

  • Pharmaceutical Science
  • Drug Stability
  • Clinical Pharmacy

Background:

  • Pantoprazole, a weak base (pKa ~4), exhibits pH-dependent stability.
  • Parenteral nutrition units (PNUs) typically have a pH range of 6.0-6.5.
  • Proton pump inhibitors (PPIs) like pantoprazole are most stable in acidic conditions.

Purpose of the Study:

  • To evaluate the stability and suitability of pantoprazole for co-administration in parenteral nutrition units (PNUs).
  • To assess the feasibility of simplifying drug administration by adding pantoprazole to PNUs.

Main Methods:

  • High-performance liquid chromatography (HPLC) was employed to quantify pantoprazole concentrations.
  • Pantoprazole content was measured in PNUs at various time points post-administration.

Main Results:

  • Chromatographic analysis revealed rapid and progressive degradation of pantoprazole within the PNU.
  • Less than 50% of the initial pantoprazole dose remained detectable in the PNU after 24 hours.

Conclusions:

  • Pantoprazole is not suitable for administration in PNUs due to significant instability.
  • Co-administration poses a risk of patient under-dosing and exposure to potentially harmful degradation products.
Abstract

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