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Related Experiment Videos

Ranitidine--rifampicin interaction.

S D Purohit1, S C Johri, P R Gupta

  • 1Hospital for Chest and Tuberculosis, SMS Medical College, Jaipur, Rajasthan.

The Journal of the Association of Physicians of India
|May 1, 1992
PubMed
Summary
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Ranitidine, when given with rifampicin for tuberculosis, did not affect drug levels but reduced gastrointestinal side effects. This suggests ranitidine can improve treatment tolerability for pulmonary tuberculosis patients.

Area of Science:

  • Pharmacology
  • Gastroenterology
  • Infectious Diseases

Background:

  • Rifampicin is a key drug for treating pulmonary tuberculosis.
  • Gastrointestinal side effects can impact patient adherence to tuberculosis treatment.

Purpose of the Study:

  • To investigate the effect of ranitidine on the pharmacokinetics of rifampicin.
  • To assess the impact of ranitidine on gastrointestinal symptoms in tuberculosis patients.

Main Methods:

  • A randomized controlled trial involving 112 newly diagnosed pulmonary tuberculosis patients.
  • Patients received either placebo or ranitidine (150 mg twice daily) alongside a rifampicin-containing regimen.
  • Measurements included gastric pH, gastric emptying, serum and urinary rifampicin levels, and liver function tests.

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Main Results:

  • Ranitidine increased gastric pH without affecting gastric emptying time.
  • Concomitant ranitidine did not alter rifampicin absorption, metabolism, or excretion.
  • Ranitidine significantly reduced the frequency of gastrointestinal adverse symptoms.

Conclusions:

  • Ranitidine can be safely co-administered with rifampicin for pulmonary tuberculosis.
  • Ranitidine improves the tolerability of rifampicin-based regimens by reducing gastrointestinal side effects.