{
  "schema_version": 1,
  "kind": "condition",
  "id": "raynaud-phenomenon",
  "name": "Raynaud's Phenomenon (Primary)",
  "category": "chronic",
  "sources": "BSR and BHPR guideline for the management of Raynaud's phenomenon 2015 · Egyptian National Drug Formulary - Cardiovascular 2024 (amlodipine monograph) · Egyptian National Drug Formulary - Cardiovascular 2024 (nifedipine monograph)",
  "review_status": "reviewed",
  "verified_against": "Egyptian National Drug Formulary - Cardiovascular 2024 (nifedipine monograph) · Egyptian National Drug Formulary - Cardiovascular 2024 (amlodipine monograph)",
  "verified_date": "2026-08",
  "treatments": [
    {
      "id": 1580,
      "generic": "Nifedipine",
      "line": 1,
      "is_adjunct": false,
      "form": "oral.solid",
      "strength_mg": 20.0,
      "adult_dose": "20 mg twice daily (modified-release retard formulation, e.g. Epilat Retard)",
      "adult_duration": "long-term during cold season",
      "dose_source": "Egyptian National Drug Formulary - Cardiovascular 2024 (nifedipine monograph)",
      "rationale": "Modified-release formulation (e.g. Epilat Retard 20 mg SR) is preferred over short-acting immediate-release 10 mg soft-gel capsules to avoid precipitous vasodilation and reflex tachycardia.",
      "cautions": [
        "MANDATORY to exclude secondary Raynaud's (red flags: digital ulcers, tissue necrosis, asymmetrical attacks, late onset >30y, sclerodactyly, positive ANA); prompt rheumatology referral if suspected.",
        "CONTRAINDICATED in severe hypotension, cardiogenic shock, and severe aortic stenosis; avoid short-acting immediate-release capsules.",
        "Emphasize non-pharmacological measures (keep extremities warm, smoking cessation, avoid sympathomimetics and beta-blockers); common adverse effects include flushing, headache, and ankle edema.",
        "The Egyptian formulary doses the once-daily extended-release nifedipine at 30-60 mg, maximum 120 mg daily. The 20 mg twice-daily retard preparation specified here is a different product - do not read the two as interchangeable."
      ],
      "peds_mgkg_low": null,
      "peds_mgkg_high": null,
      "peds_max_mg": null,
      "peds_basis": null,
      "peds_unit": null,
      "peds_note": "Specialist pediatric rheumatology evaluation",
      "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": "EPILAT RETARD 20MG SR. 20 F.C.TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "EIPICO",
          "price_egp": 22.0,
          "pack_count": 20,
          "unit_price": 1.1,
          "strength_mg": 20.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        }
      ],
      "condition_id": "raynaud-phenomenon"
    },
    {
      "id": 1581,
      "generic": "Amlodipine",
      "line": 2,
      "is_adjunct": false,
      "form": "oral.solid",
      "strength_mg": 5.0,
      "adult_dose": "5-10 mg once daily",
      "adult_duration": "long-term",
      "dose_source": "Egyptian National Drug Formulary - Cardiovascular 2024 (amlodipine monograph)",
      "rationale": "Amlodipine is a dihydropyridine calcium channel blocker that dilates peripheral arteries, reducing the frequency and severity of the vasospastic attacks characteristic of primary Raynaud's phenomenon.",
      "cautions": [
        "MANDATORY to rule out secondary Raynaud's and connective tissue disease (digital ulceration, tissue loss, scleroderma features).",
        "CONTRAINDICATED in severe hypotension and cardiogenic shock.",
        "Monitor for peripheral edema, headache, and dizziness; emphasize cold avoidance and smoking cessation."
      ],
      "peds_mgkg_low": null,
      "peds_mgkg_high": null,
      "peds_max_mg": null,
      "peds_basis": null,
      "peds_unit": null,
      "peds_note": "Specialist use only",
      "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": "CORONAVINE 5 MG 10 TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "PHAROPHARMA",
          "price_egp": 6.0,
          "pack_count": 10,
          "unit_price": 0.6,
          "strength_mg": 5.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "WINDIPINE 5 MG 30 TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "SANOFI",
          "price_egp": 21.0,
          "pack_count": 30,
          "unit_price": 0.7,
          "strength_mg": 5.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "VASOPINE 5 MG 30 TABS.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "ARAB DRUG COMPANY (ADCO)",
          "price_egp": 24.0,
          "pack_count": 30,
          "unit_price": 0.8,
          "strength_mg": 5.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "AMILO 5 MG 30 TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "ALFACURE PHARMACEUTICALS",
          "price_egp": 54.0,
          "pack_count": 30,
          "unit_price": 1.8,
          "strength_mg": 5.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "AMLODIPINE 5 MG 30 TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "AMRIYA",
          "price_egp": 60.0,
          "pack_count": 30,
          "unit_price": 2.0,
          "strength_mg": 5.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "MYODURA 5 MG 30 TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "GLOBAL NAPI PHARMACEUTICALS > WOCKHARDT",
          "price_egp": 69.0,
          "pack_count": 30,
          "unit_price": 2.3,
          "strength_mg": 5.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "NORVASC 5MG 10 TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "PFIZER > VIATRIS EGYPT",
          "price_egp": 54.0,
          "pack_count": 10,
          "unit_price": 5.4,
          "strength_mg": 5.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        },
        {
          "trade_name": "NORVASC 5MG 30 TAB.",
          "scientific_name": null,
          "normalized_ingredient": null,
          "manufacturer": "PFIZER > VIATRIS EGYPT",
          "price_egp": 162.0,
          "pack_count": 30,
          "unit_price": 5.4,
          "strength_mg": 5.0,
          "exact_strength": true,
          "exact_form": true,
          "discontinued": false,
          "also_contains": null
        }
      ],
      "condition_id": "raynaud-phenomenon"
    }
  ]
}