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Drugs Affecting GI Tract Motility: Antimicrobials as Antidiarrheal Agents01:18

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Acute diarrhea, a common gastrointestinal disturbance, is characterized by the rapid evacuation of fluid stools, leading to an excessive weight in fluid. This condition typically arises from disorders affecting intestinal water and electrolyte transport. It can be triggered by an increased osmotic load within the intestine, excessive secretion of electrolytes and water, mucosal exudation of protein and fluid, or altered intestinal motility. The primary risks of acute diarrhea are dehydration...
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Diarrhea is characterized by the occurrence of frequent, watery bowel movements. Various factors can trigger diarrhea, including viral or bacterial infections, foodborne illnesses, side effects from certain medications, and underlying digestive disorders. If not adequately managed, diarrhea can lead to complications such as dehydration, electrolyte imbalances, and nutrient deficiencies. Severe diarrhea can lead to significant weight loss, malnutrition, and weakened immune function.
Adsorbents...
Drugs for Treatment of Diarrhea-Predominant IBS01:17

Drugs for Treatment of Diarrhea-Predominant IBS

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Ulcerative colitis is a chronic inflammatory condition primarily affecting the colon and rectum. The primary drugs used in the treatment of ulcerative colitis are aminosalicylates. They exhibit anti-inflammatory and immunosuppressive properties. They modulate inflammatory mediators and inhibit the activity of nuclear factor κB (NF-κB). Aminosalicylates also reduce inflammation by inhibiting prostaglandin and leukotriene production and decreasing neutrophil chemotaxis and superoxide generation. 
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Anthelminthic Agents

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Drugs for treating giardiasis.

Carlos E Granados1, Ludovic Reveiz, Luis G Uribe

  • 1Facultad de Medicina, Universidad Nacional de Colombia, Bogota D.C., Colombia.cegranadosg@unal.edu.co. caregra@gmail.com.

The Cochrane Database of Systematic Reviews
|December 14, 2012
PubMed
Summary
This summary is machine-generated.

Albendazole appears as effective as metronidazole for giardiasis treatment, with potentially fewer side effects and a simpler dosing schedule. Further high-quality trials are needed to confirm these findings and explore other alternatives.

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Area of Science:

  • Infectious Diseases
  • Clinical Pharmacology
  • Evidence-Based Medicine

Background:

  • Giardiasis is a parasitic infection causing diarrhea, weight loss, and malabsorption.
  • Standard treatment involves metronidazole, typically administered three times daily for 5-10 days.
  • Alternative antibiotic regimens are being investigated to improve treatment efficacy and patient compliance.

Purpose of the Study:

  • To compare the effectiveness of alternative antibiotic treatments for symptomatic giardiasis in adults and children.
  • To evaluate the safety and efficacy of drugs such as albendazole, tinidazole, mebendazole, and nitazoxanide against metronidazole.
  • To identify simplified or more tolerable treatment options for giardiasis.

Main Methods:

  • A systematic review and meta-analysis of randomized controlled trials (RCTs) were conducted.
  • Searches included major databases like Cochrane CENTRAL, MEDLINE, and EMBASE up to July 2012.
  • Included RCTs compared metronidazole (5-10 days) with single-dose tinidazole, albendazole, mebendazole, nitazoxanide, or single-dose metronidazole. Primary outcomes were parasitological and clinical cure.

Main Results:

  • Nineteen trials involving 1817 participants (1441 children) were included; studies often had small sample sizes and methodological limitations.
  • Albendazole (once daily for 5-10 days) showed comparable parasitological cure (RR 0.99) and symptom improvement (RR 0.98) to metronidazole, with moderate-quality evidence.
  • Albendazole likely resulted in fewer gastrointestinal (RR 0.29) and neurological (RR 0.34) side effects compared to metronidazole, though follow-up was short.

Conclusions:

  • Albendazole presents a potentially effective alternative to metronidazole for giardiasis, offering a simplified regimen and a better side-effect profile.
  • Current evidence for mebendazole, tinidazole, and nitazoxanide is limited due to small trial sizes and high risk of bias.
  • Larger, high-quality trials focusing on clinical outcomes like diarrhea are recommended to further assess alternative giardiasis treatments.