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Related Experiment Videos

Antihypertensive pharmacobezoar.

L Michael Prisant1, Vernon C Spaulding

  • 1Department of Hypertension & Clinical Pharmacology, Medical College of Georgia, 1470 Harper Street, Augusta, GA 30912, USA. mprisant@mcg.edu

Journal of Clinical Hypertension (Greenwich, Conn.)
|April 6, 2006
PubMed
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Gastrointestinal therapeutic systems used with some blood pressure medications can cause rare but serious obstructions, especially at prior surgical sites. Clinicians should be aware of this potential side effect in patients taking these antihypertensive drugs.

Area of Science:

  • Pharmacology
  • Gastroenterology
  • Clinical Medicine

Background:

  • Antihypertensive medications are crucial for managing high blood pressure.
  • Many of these drugs employ advanced drug delivery systems to enhance efficacy.
  • Extended-release formulations can present unique clinical challenges and side effects.

Purpose of the Study:

  • To highlight a unique gastrointestinal side effect associated with specific drug delivery systems.
  • To inform healthcare providers about the potential for intestinal obstruction with certain antihypertensive drugs.
  • To increase awareness of rare but serious complications related to drug formulation.

Main Methods:

  • Review of clinical data and known side effects of antihypertensive drugs utilizing specific delivery systems.

Related Experiment Videos

  • Identification of drugs sharing the gastrointestinal therapeutic system technology.
  • Analysis of reported cases of obstruction associated with these formulations.

    • Main Results:

    • The gastrointestinal therapeutic system, used with nifedipine, isradipine, and verapamil, can cause obstruction.
    • Obstruction is more likely at sites of previous gastrointestinal surgery or pre-existing stenosis.
    • This delivery system is also employed in non-antihypertensive medications like methylphenidate and oxybutynin.

    Conclusions:

    • Physicians managing hypertensive patients must recognize the potential for gastrointestinal obstruction with this drug delivery system.
    • Early identification and awareness are key to preventing rare but severe complications.
    • The formulation's design, while beneficial for drug release, carries a specific risk profile.