{
  "schema_version": 1,
  "kind": "condition",
  "id": "anal-fissure",
  "name": "Acute anal fissure",
  "category": "chronic",
  "sources": "ASCRS Clinical Practice Guideline for Anal Fissure 2017 · Xyloproct (lidocaine 5%) ointment SmPC sections 4.2 and 4.4 (eMC product 883)",
  "review_status": "reviewed",
  "verified_against": "ASCRS Clinical Practice Guideline for Anal Fissure 2017 · Xyloproct (lidocaine 5%) ointment SmPC sections 4.2 and 4.4 (eMC product 883) · Acute anal fissure - disease-level clinical article (anal-fissure-clinical.txt)",
  "verified_date": "2026-08",
  "treatments": [
    {
      "id": 158,
      "generic": "Glyceryl trinitrate",
      "line": 1,
      "is_adjunct": false,
      "form": "topical",
      "strength_mg": null,
      "adult_dose": "Apply 0.4% ointment intra-anally every 12 hours",
      "adult_duration": "up to 8 weeks",
      "dose_source": "ASCRS Clinical Practice Guideline for Anal Fissure 2017",
      "rationale": "Topical nitrate that relaxes the internal anal sphincter and improves local blood flow, breaking the spasm-ischemia cycle that keeps a fissure from healing; used alongside fiber, stool softeners, and sitz baths rather than instead of them.",
      "cautions": [
        "Headache is very common due to systemic nitrate absorption.",
        "Advise high-fiber diet, stool softeners, and warm sitz baths concurrently.",
        "Contraindicated with PDE-5 inhibitors (sildenafil)."
      ],
      "peds_mgkg_low": null,
      "peds_mgkg_high": null,
      "peds_max_mg": null,
      "peds_basis": null,
      "peds_unit": null,
      "peds_note": "Specialist pediatric surgical referral required",
      "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": null,
      "brands": [
        {
          "trade_name": "GLYCEROTONE 0.4 % RECTAL OINT. 50 GM",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "EGPI > MISR",
          "price_egp": 32.5,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 50000.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "RECTOSWAB RECTAL OINT 30 GM",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "UNISWAB",
          "price_egp": 12.9,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 30000.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        }
      ],
      "condition_id": "anal-fissure"
    },
    {
      "id": 160,
      "generic": "Referral & safety-netting (no drug therapy)",
      "line": 1,
      "is_adjunct": false,
      "form": null,
      "strength_mg": null,
      "adult_dose": null,
      "adult_duration": null,
      "dose_source": "Acute anal fissure - disease-level clinical article (anal-fissure-clinical.txt)",
      "rationale": "Carries the referral criteria and warning signs for this condition, which apply whichever treatment is chosen.",
      "cautions": [
        "RED FLAG - An atypical (nonmidline) fissure location requires investigation for secondary underlying causes (Crohn disease, infection, malignancy)."
      ],
      "peds_mgkg_low": null,
      "peds_mgkg_high": null,
      "peds_max_mg": null,
      "peds_basis": null,
      "peds_unit": null,
      "peds_note": null,
      "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": null,
      "brands": [],
      "condition_id": "anal-fissure"
    },
    {
      "id": 159,
      "generic": "Lidocaine",
      "line": 2,
      "is_adjunct": false,
      "form": "topical",
      "strength_mg": null,
      "adult_dose": "Apply 5% ointment topically to anal verge prior to defecation",
      "adult_duration": "up to 2 weeks",
      "dose_source": "Xyloproct (lidocaine 5%) ointment SmPC sections 4.2 and 4.4 (eMC product 883)",
      "rationale": "Topical local anesthetic that numbs the anal verge to ease the pain of defecation; provides symptomatic relief only and does not address the sphincter spasm that perpetuates the fissure.",
      "cautions": [
        "Symptomatic pain relief option; does not heal internal sphincter spasm.",
        "A fissure is broken mucosa and lidocaine crosses it. Stay under about 6 g of ointment a day; past that the drug reaches the blood, and in children that has caused seizures.",
        "Discontinue if local sensitization occurs."
      ],
      "peds_mgkg_low": null,
      "peds_mgkg_high": null,
      "peds_max_mg": null,
      "peds_basis": null,
      "peds_unit": null,
      "peds_note": "Specialist pediatric surgical referral required",
      "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": null,
      "brands": [
        {
          "trade_name": "FARCO-CAINE 5% OINT. 20 GM",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "PHARCO",
          "price_egp": 4.25,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 20000.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "LIDOSINE 5% TOPICAL OINT. 20 GM",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "AMRIYA",
          "price_egp": 4.4,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 20000.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "LIDOGED 5% TOPICAL GEL 15 GM",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "JEDCO INT. CO. FOR PHARMACEUTICALS",
          "price_egp": 5.0,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 15000.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "ULTRACAINE 5% GEL 30 GM",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "MEMPHIS",
          "price_egp": 31.0,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 30000.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "XYLOTOP 4% TOP. CREAM 20 GM",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "SIGMA",
          "price_egp": 4.25,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 20000.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "XYLOTOP 4% TOPICAL GEL 20 GM",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "SIGMA",
          "price_egp": 5.0,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 20000.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "LIDOCAINE 2% GEL. 20 GM",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "ALEXANDRIA",
          "price_egp": 6.75,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 20000.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "XYLOCAINE JELLY 2% 30 GM",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "ASPEN PHARMA > PHOENIX GROUP",
          "price_egp": 30.8,
          "pack_count": null,
          "unit_price": null,
          "strength_mg": 30000.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        }
      ],
      "condition_id": "anal-fissure"
    }
  ]
}