{
  "schema_version": 1,
  "kind": "condition",
  "id": "giardiasis",
  "name": "Giardiasis",
  "category": "infectious",
  "sources": "ALINIA (nitazoxanide) US prescribing information, section 2.1 Recommended Dosage, Table 1 (DailyMed SetID e90f98d9-3c9b-4e75-ba18-5517283eadf0) · WHO Parasitic Diseases 2021 · Egyptian National Drug Formulary - Antimicrobial 2023 (metronidazole monograph) · Tindamax (tinidazole) US prescribing information, Dosage and Administration - Giardiasis (DailyMed, Mission Pharmacal)",
  "review_status": "reviewed",
  "verified_against": "Egyptian National Drug Formulary - Antimicrobial 2023 (metronidazole monograph) · Tindamax (tinidazole) US prescribing information, Dosage and Administration - Giardiasis (DailyMed, Mission Pharmacal) · ALINIA (nitazoxanide) US prescribing information, section 2.1 Recommended Dosage, Table 1 (DailyMed SetID e90f98d9-3c9b-4e75-ba18-5517283eadf0) · Giardiasis - disease-level clinical article (giardiasis-clinical.txt)",
  "verified_date": "2026-08",
  "treatments": [
    {
      "id": 832,
      "generic": "Metronidazole",
      "line": 1,
      "is_adjunct": false,
      "form": "oral.solid",
      "strength_mg": 250.0,
      "adult_dose": "250-500 mg TID for 5-7 days or single 2 g daily dose for 3 days",
      "adult_duration": "3-7 days",
      "dose_source": "Egyptian National Drug Formulary - Antimicrobial 2023 (metronidazole monograph)",
      "rationale": "Nitroimidazole antiprotozoal that is activated inside the parasite to damage its DNA; the standard, inexpensive first-line treatment for giardiasis.",
      "cautions": [
        "Avoid alcohol completely during treatment.",
        "Treat all household contacts if symptomatic.",
        "Nausea and metallic taste are common."
      ],
      "peds_mgkg_low": 15.0,
      "peds_mgkg_high": 30.0,
      "peds_max_mg": 1200.0,
      "peds_basis": "day",
      "peds_unit": "mg",
      "peds_note": "Divided TID for 5-7 days",
      "peds_min_weight_kg": null,
      "peds_max_weight_kg": null,
      "peds_age_min_months": null,
      "peds_age_max_months": null,
      "peds_age_bands": null,
      "peds_doses": [
        {
          "weight_kg": 10,
          "low_mg": 150,
          "high_mg": 300,
          "capped": false
        },
        {
          "weight_kg": 20,
          "low_mg": 300,
          "high_mg": 600,
          "capped": false
        },
        {
          "weight_kg": 30,
          "low_mg": 450,
          "high_mg": 900,
          "capped": false
        },
        {
          "weight_kg": 40,
          "low_mg": 600,
          "high_mg": 1200,
          "capped": false
        }
      ],
      "brands": [
        {
          "trade_name": "TRICHOGYL 250 MG 20 TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "EL NASR",
          "price_egp": 4.35,
          "pack_count": 20,
          "unit_price": 0.22,
          "strength_mg": 250.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "FLAGICURE 250MG 20 TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "KAHIRA",
          "price_egp": 7.0,
          "pack_count": 20,
          "unit_price": 0.35,
          "strength_mg": 250.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "TRICHOCID 250MG 20 TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "CID",
          "price_egp": 7.0,
          "pack_count": 20,
          "unit_price": 0.35,
          "strength_mg": 250.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "METRONIDAZOLE-MUP 250 MG 20 F.C. TABS.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "MUP",
          "price_egp": 11.0,
          "pack_count": 20,
          "unit_price": 0.55,
          "strength_mg": 250.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "AMRIZOLE 250 MG 20 TABS.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "AMRIYA",
          "price_egp": 20.0,
          "pack_count": 20,
          "unit_price": 1.0,
          "strength_mg": 250.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "METROZOLE 250MG 20 TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "MEMPHIS",
          "price_egp": 20.0,
          "pack_count": 20,
          "unit_price": 1.0,
          "strength_mg": 250.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "DUMOZOL 125MG/5ML SUSP. 125ML",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "MINA PHARM > ALPHARMA-DENMARK",
          "price_egp": 5.75,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 125.0,
          "exact_strength": false,
          "exact_form": false,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "METROZOLE 125MG/5ML SUSP. 120 ML",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "MEMPHIS",
          "price_egp": 19.5,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 125.0,
          "exact_strength": false,
          "exact_form": false,
          "discontinued": false,
          "also_contains": null
        }
      ],
      "condition_id": "giardiasis"
    },
    {
      "id": 833,
      "generic": "Tinidazole",
      "line": 1,
      "is_adjunct": false,
      "form": "oral.solid",
      "strength_mg": 500.0,
      "adult_dose": "2 g single dose taken with food",
      "adult_duration": "single-dose",
      "dose_source": "Tindamax (tinidazole) US prescribing information, Dosage and Administration - Giardiasis (DailyMed, Mission Pharmacal)",
      "rationale": "Nitroimidazole in the same class as metronidazole but with a longer half-life allowing a shorter course, offered as an alternative for patients wanting a simpler regimen.",
      "cautions": [
        "Avoid alcohol during and for 3 days after dose.",
        "Take with food.",
        "The label licenses the paediatric single dose from 3 years, not below.",
        "Not in the first trimester of pregnancy. Later in pregnancy weigh it case by case, and stop breastfeeding for the dose and 3 days after - it stays in milk that long."
      ],
      "peds_mgkg_low": 50.0,
      "peds_mgkg_high": 50.0,
      "peds_max_mg": 2000.0,
      "peds_basis": "dose",
      "peds_unit": "mg",
      "peds_note": "Single dose with food",
      "peds_min_weight_kg": null,
      "peds_max_weight_kg": null,
      "peds_age_min_months": 36.0,
      "peds_age_max_months": null,
      "peds_age_bands": null,
      "peds_doses": [
        {
          "weight_kg": 10,
          "low_mg": 500,
          "high_mg": 500,
          "capped": false
        },
        {
          "weight_kg": 20,
          "low_mg": 1000,
          "high_mg": 1000,
          "capped": false
        },
        {
          "weight_kg": 30,
          "low_mg": 1500,
          "high_mg": 1500,
          "capped": false
        },
        {
          "weight_kg": 40,
          "low_mg": 2000,
          "high_mg": 2000,
          "capped": false
        }
      ],
      "brands": [
        {
          "trade_name": "FASIGYN 500 MG 4 TABS.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "PFIZER",
          "price_egp": 8.35,
          "pack_count": 4,
          "unit_price": 2.09,
          "strength_mg": 500.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "PROTOZOLE 500 MG 12 F.C.TABS.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "MUP",
          "price_egp": 39.0,
          "pack_count": 12,
          "unit_price": 3.25,
          "strength_mg": 500.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        }
      ],
      "condition_id": "giardiasis"
    },
    {
      "id": 834,
      "generic": "Nitazoxanide",
      "line": 1,
      "is_adjunct": false,
      "form": "oral.solid",
      "strength_mg": 500.0,
      "adult_dose": "500 mg BID with food",
      "adult_duration": "3 days",
      "dose_source": "ALINIA (nitazoxanide) US prescribing information, section 2.1 Recommended Dosage, Table 1 (DailyMed SetID e90f98d9-3c9b-4e75-ba18-5517283eadf0)",
      "rationale": "Antiprotozoal that interferes with the parasite's electron transfer enzyme system; a useful alternative to the nitroimidazoles, particularly convenient in Egypt where it is available as a paediatric suspension.",
      "cautions": [
        "Take with food.",
        "Nitazoxanide is an excellent pediatric option available as suspension in Egypt.",
        "Urine discoloration can occur."
      ],
      "peds_mgkg_low": null,
      "peds_mgkg_high": null,
      "peds_max_mg": null,
      "peds_basis": null,
      "peds_unit": null,
      "peds_note": "100 mg BID (1-3 yrs) or 200 mg BID (4-11 yrs) with food for 3 days",
      "peds_min_weight_kg": null,
      "peds_max_weight_kg": null,
      "peds_age_min_months": null,
      "peds_age_max_months": null,
      "peds_age_bands": [
        {
          "label": "1 to 3 years",
          "age_min_months": 12,
          "age_max_months": 47,
          "dose_text": "100 mg twice daily with food, for 3 days"
        },
        {
          "label": "4 to 11 years",
          "age_min_months": 48,
          "age_max_months": 143,
          "dose_text": "200 mg twice daily with food, for 3 days"
        }
      ],
      "peds_doses": null,
      "brands": [
        {
          "trade_name": "UNINITAPROZAX 500MG 12 F.C. TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "UNIPHARMA CO. > UNIPHARMA",
          "price_egp": 16.0,
          "pack_count": 12,
          "unit_price": 1.33,
          "strength_mg": 500.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "CRYPTOPER 500MG 30 F.C. TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "EGPI > TAG PHARMA",
          "price_egp": 56.0,
          "pack_count": 30,
          "unit_price": 1.87,
          "strength_mg": 500.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "XEROVIRINC 500MG 18 F.C. TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "MINA PHARM",
          "price_egp": 42.0,
          "pack_count": 18,
          "unit_price": 2.33,
          "strength_mg": 500.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "PARAZOXANIDE 500 MG 18 CAP.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "MISR > PHARMACARE",
          "price_egp": 63.0,
          "pack_count": 18,
          "unit_price": 3.5,
          "strength_mg": 500.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "TRUSTNAL 500 MG 10 F.C. TABS.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "ADWIA",
          "price_egp": 40.0,
          "pack_count": 10,
          "unit_price": 4.0,
          "strength_mg": 500.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "NIT CLEAN 500MG 12 F.C. TABS.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "WESTERN PHARMACEUTICALS INDUSTRIES > WESTERN PHARMA",
          "price_egp": 72.0,
          "pack_count": 12,
          "unit_price": 6.0,
          "strength_mg": 500.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "CRYPTONAZ 500MG 12 F.C.TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "COPAD PHARMA",
          "price_egp": 82.0,
          "pack_count": 12,
          "unit_price": 6.83,
          "strength_mg": 500.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "NIT CLEAN 500MG 5*6 F.C. TABS.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "WESTERN PHARMACEUTICALS INDUSTRIES > WESTERN PHARMA",
          "price_egp": 180.0,
          "pack_count": 6,
          "unit_price": 30.0,
          "strength_mg": 500.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "UNINITAPROZAX 100MG/5ML SUSP. 60ML",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "UNIPHARMA CO. > UNIPHARMA",
          "price_egp": 6.0,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 100.0,
          "exact_strength": false,
          "exact_form": false,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "ZOLIFUTAL 100MG/5ML SUSP. 60 ML",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "FUTURE PHARMACEUTICAL INDUSTRIES (FPI)",
          "price_egp": 13.5,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 100.0,
          "exact_strength": false,
          "exact_form": false,
          "discontinued": false,
          "also_contains": null
        }
      ],
      "condition_id": "giardiasis"
    }
  ]
}