Giardia lamblia - Revision history

Danbot: Add Metronidazole AntibioticDose entry

2026-03-20T10:58:41Z

Add Metronidazole AntibioticDose entry

← Older revision		Revision as of 10:58, 20 March 2026
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	*Treat asymptomatic infections in those at high-risk of transmitting to others (children in daycare, food handlers, etc) or those at risk of chronic symptoms		*Treat asymptomatic infections in those at high-risk of transmitting to others (children in daycare, food handlers, etc) or those at risk of chronic symptoms
	*Reinfection universal within 3 months in heavily infected endemic areas; treatment is not cost-effective in this setting		*Reinfection universal within 3 months in heavily infected endemic areas; treatment is not cost-effective in this setting


			===Antibiotic Dosing===
			*{{AntibioticDose\|drug=Metronidazole\|dose=250mg PO q8h x 5-7 days; Alt: 2 g PO q 24h x 3 days\|context=Giardiasis\|disease=Giardia lamblia\|population=Adult}}

	==Disposition==		==Disposition==

2017-03-28T18:18:10Z

Management

2017-03-27T18:17:39Z

Management

← Older revision		Revision as of 18:17, 27 March 2017
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	*[[Albendazole]]<ref>http://www.ncbi.nlm.nih.gov/pubmed/23235648</ref>		*[[Albendazole]]<ref>http://www.ncbi.nlm.nih.gov/pubmed/23235648</ref>
	**400mg PO daily x 5-10 days		**400mg PO daily x 5-10 days
	*Tinidazole		*[[Tinidazole]]
	**Adult: 2 grams PO x 1 dose		**Adult: 2 grams PO x 1 dose
	**Children: 50mg/kg PO x 1 dose		**Children: 50mg/kg PO x 1 dose

2016-07-23T07:34:06Z

Text replacement - "==Diagnosis==" to "==Evaluation=="

2016-07-20T14:45:07Z

Text replacement - "0 mg" to "0mg"

← Older revision		Revision as of 14:45, 20 July 2016
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	''Treatment is not always successful <ref>http://www.ncbi.nlm.nih.gov/pubmed/20086650 </ref>''		''Treatment is not always successful <ref>http://www.ncbi.nlm.nih.gov/pubmed/20086650 </ref>''
	*[[Metronidazole]]		*[[Metronidazole]]
	**Adult: ~~250 mg~~ TID x 7-10 days		**Adult: 250mg TID x 7-10 days
	**Children: 5mg/kg TID x 7 days (max dose ~~500 mg~~ TID)		**Children: 5mg/kg TID x 7 days (max dose 500mg TID)
	*[[Albendazole]]<ref>http://www.ncbi.nlm.nih.gov/pubmed/23235648</ref>		*[[Albendazole]]<ref>http://www.ncbi.nlm.nih.gov/pubmed/23235648</ref>
	**~~400 mg~~ PO daily x 5-10 days		**400mg PO daily x 5-10 days
	*Tinidazole		*Tinidazole
	**Adult: 2 grams PO x 1 dose		**Adult: 2 grams PO x 1 dose
	**Children: ~~50 mg~~/kg PO x 1 dose		**Children: 50mg/kg PO x 1 dose
	*Quinacrine		*Quinacrine
	**> 8 years old: ~~100 mg~~ TID x 7 days		**> 8 years old: 100mg TID x 7 days
	**< 8 years old: 2mg/kg TID x 7 days		**< 8 years old: 2mg/kg TID x 7 days
	*Nitazoxanide		*Nitazoxanide
	**> 12 years old: ~~500 mg~~ BID x 3 days		**> 12 years old: 500mg BID x 3 days
	**4-11 years old: ~~200 mg~~ BID x 3 days		**4-11 years old: 200mg BID x 3 days
	**12-47 months old: ~~100 mg~~ BID x 3 days		**12-47 months old: 100mg BID x 3 days

	===Public Health Measures===		===Public Health Measures===

2016-07-20T03:14:08Z

Text replacement - "2 mg" to "2mg"

2016-07-19T19:17:31Z

Text replacement - "5 mg" to "5mg"

← Older revision		Revision as of 19:17, 19 July 2016
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	*[[Metronidazole]]		*[[Metronidazole]]
	**Adult: 250 mg TID x 7-10 days		**Adult: 250 mg TID x 7-10 days
	**Children: ~~5 mg~~/kg TID x 7 days (max dose 500 mg TID)		**Children: 5mg/kg TID x 7 days (max dose 500 mg TID)
	*[[Albendazole]]<ref>http://www.ncbi.nlm.nih.gov/pubmed/23235648</ref>		*[[Albendazole]]<ref>http://www.ncbi.nlm.nih.gov/pubmed/23235648</ref>
	**400 mg PO daily x 5-10 days		**400 mg PO daily x 5-10 days

2015-06-04T18:33:13Z

Differential Diagnosis

← Older revision		Revision as of 18:33, 4 June 2015
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	==Differential Diagnosis==		==Differential Diagnosis==
	*Viral infection (e.g. rotavirus)
	*Bacterial diarrhea
	**[[Campylobacter]]
	**[[Shigella]]
	**[[Salmonella]]
	**[[E. Coli]]
	**[[E. Coli O157:H7]]
	**[[Yersinia]]
	**[[Vibrio cholera]]
	**[[Clostridium difficile]]
	*Parasitic infection
	**[[Cryptosporidium]]
	**[[Enteromonas hominis]]
	**[[Entamoeba histolytica]]
	*Toxin-mediated
	**[[Staphylococcus aureus]]
	**[[Bacillus cereus]]

	{{Diarrhea DDX}}		{{Diarrhea DDX}}

2015-06-04T18:32:43Z

Differential Diagnosis

← Older revision		Revision as of 18:32, 4 June 2015
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	==Differential Diagnosis==		==Differential Diagnosis==

	*Viral infection (e.g. rotavirus)		*Viral infection (e.g. rotavirus)
	*Bacterial diarrhea		*Bacterial diarrhea
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	**[[Staphylococcus aureus]]		**[[Staphylococcus aureus]]
	**[[Bacillus cereus]]		**[[Bacillus cereus]]

			{{Diarrhea DDX}}

	==Diagnosis==		==Diagnosis==

2015-06-04T18:31:12Z

Clinical Presentation

← Older revision		Revision as of 18:31, 4 June 2015
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	*A single diarrheal stool may contain hundreds of millions of cysts or parasites		*A single diarrheal stool may contain hundreds of millions of cysts or parasites

	==Clinical ~~Presentation~~==		==Clinical Features==
	*Often asymptomatic		*Often asymptomatic
	*Most common symptoms include:		*Most common symptoms include:
	**Abdominal distension		**Abdominal distension
	**Colicky pain		**Colicky [[abdominal pain]]
	**Flatulence		**Flatulence
	**[[Diarrhea]] (pale, loose, floating, foul odor)		**[[Diarrhea]] (pale, loose, floating, foul odor)