{ "schema_version": 1, "kind": "condition", "id": "erythema-infectiosum", "name": "Erythema Infectiosum (Fifth Disease)", "category": "infectious", "sources": "CDC Parvovirus B19 Guidance · MSF Essential Drugs 2024 - paracetamol (oral) · Ibuprofen 100 mg/5 ml SmPC section 4.2 (eMC product 4560) · StatPearls: Ibuprofen (NCBI Bookshelf NBK542299)", "review_status": "reviewed", "verified_against": "MSF Essential Drugs 2024 - paracetamol (oral) · Ibuprofen 100 mg/5 ml SmPC section 4.2 (eMC product 4560)", "verified_date": "2026-08", "treatments": [ { "id": 678, "generic": "Paracetamol", "line": 1, "is_adjunct": false, "form": "oral.solid", "strength_mg": 500.0, "adult_dose": "1 g 3 or 4 times daily (max. 4 g daily)", "adult_duration": null, "dose_source": "MSF Essential Drugs 2024 - paracetamol (oral)", "rationale": "Antipyretic and analgesic for the fever and joint discomfort of erythema infectiosum, a self-limiting viral illness; it does not treat the underlying viral infection itself.", "cautions": [ "Benign self-limiting viral rash in children; patient is NO LONGER CONTAGIOUS once rash appears.", "PREGNANCY ALERT: Parvovirus B19 causes hydrops fetalis and fetal loss in pregnant women; urgent obstetric referral required.", "There is an aplastic crisis risk in patients with chronic haemolytic anaemia (sickle cell, thalassaemia, spherocytosis).", "500 mg is the per-dose ceiling used here for a child. 1000 mg is the adult dose and does not belong in a weight calculation - the daily 60 mg/kg limit is the one that binds first in any case.", "Administer with caution to patients with hepatic impairment." ], "peds_mgkg_low": 15.0, "peds_mgkg_high": 15.0, "peds_max_mg": 500.0, "peds_basis": "dose", "peds_unit": "mg", "peds_note": "Give 15 mg/kg every 4-6 hours as needed (max 60 mg/kg/day) Under 1 month: 10 mg/kg 3 or 4 times daily, maximum 40 mg/kg/day (MSF Essential Drugs 2024).", "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": 150, "capped": false }, { "weight_kg": 20, "low_mg": 300, "high_mg": 300, "capped": false }, { "weight_kg": 30, "low_mg": 450, "high_mg": 450, "capped": false }, { "weight_kg": 40, "low_mg": 500, "high_mg": 500, "capped": true } ], "brands": [ { "trade_name": "FEBRIMOL 500 MG 20 TAB.", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "PHARCO", "price_egp": 3.5, "pack_count": 20, "unit_price": 0.17, "strength_mg": 500.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "CETAMOL 500 MG 20 TABS.", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "MEMPHIS", "price_egp": 8.0, "pack_count": 20, "unit_price": 0.4, "strength_mg": 500.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "PARACETAMOL-MUP 500MG B.P. 20 TABS.", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "MUP", "price_egp": 13.0, "pack_count": 20, "unit_price": 0.65, "strength_mg": 500.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "CETAL 500 MG 20 TABS.", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "EIPICO", "price_egp": 24.0, "pack_count": 20, "unit_price": 1.2, "strength_mg": 500.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "ARKADOLOW 500 MG 30 F.C. TABS.", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "UTOPIA", "price_egp": 42.0, "pack_count": 30, "unit_price": 1.4, "strength_mg": 500.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "PARAMOL 500MG 20 TAB.", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "MISR", "price_egp": 38.0, "pack_count": 20, "unit_price": 1.9, "strength_mg": 500.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "ADOL 500MG 24 CAPLETS", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "JULPHAR", "price_egp": 32.0, "pack_count": null, "unit_price": null, "strength_mg": 500.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "AUGICETAMIDE 500 MG 20 SACHETS", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "AUG PHARMA", "price_egp": 50.0, "pack_count": null, "unit_price": null, "strength_mg": 500.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "FEBRIMOL ORAL DROPS 20 ML", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "PHARCO", "price_egp": 4.0, "pack_count": null, "unit_price": null, "strength_mg": null, "exact_strength": false, "exact_form": false, "discontinued": false, "also_contains": null }, { "trade_name": "THERA-LO 3.2G/100ML ORAL SUSP. 100 ML", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "PHAROPHARMA", "price_egp": 5.0, "pack_count": null, "unit_price": null, "strength_mg": 3200.0, "exact_strength": false, "exact_form": false, "discontinued": false, "also_contains": null } ], "condition_id": "erythema-infectiosum" }, { "id": 679, "generic": "Ibuprofen", "line": 1, "is_adjunct": true, "form": "oral.solid", "strength_mg": 400.0, "adult_dose": "400 mg every 8 hours with food as needed for joint pain", "adult_duration": null, "dose_source": "Ibuprofen 100 mg/5 ml SmPC section 4.2 (eMC product 4560)", "rationale": "Adjunct NSAID added for the polyarthropathy that the causative virus frequently produces in post-pubertal females, giving anti-inflammatory pain relief on top of paracetamol.", "cautions": [ "Useful for post-pubertal females who frequently develop polyarthropathy with Parvovirus B19.", "Take with food.", "The 400 mg per-dose ceiling comes from the reference literature, not from the suspension label - that label's largest paediatric single dose is 200 mg. Below about 40 kg the weight calculation binds first and the ceiling never comes into it.", "Contraindicated in the last trimester of pregnancy." ], "peds_mgkg_low": 5.0, "peds_mgkg_high": 6.67, "peds_max_mg": 400.0, "peds_basis": "dose", "peds_unit": "mg", "peds_note": "Give 5-10 mg/kg 3 times daily with food for symptomatic arthralgia. Daily ceiling: the suspension's own label caps pain-and-fever use at 20 mg/kg/day, while the reference literature allows up to 40. Stay near 20 unless there is a reason to climb, never exceed 400 mg in a single dose, and note that 30-40 mg/kg/day is the juvenile arthritis range rather than an analgesic one.", "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": 50, "high_mg": 66.7, "capped": false }, { "weight_kg": 20, "low_mg": 100, "high_mg": 133.4, "capped": false }, { "weight_kg": 30, "low_mg": 150, "high_mg": 200.1, "capped": false }, { "weight_kg": 40, "low_mg": 200, "high_mg": 266.8, "capped": false } ], "brands": [ { "trade_name": "DAJUANOFEN 400 MG 20 F.C. TABS.", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "COPAD PHARMA", "price_egp": 5.0, "pack_count": 20, "unit_price": 0.25, "strength_mg": 400.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "FLABU 400MG 10 F.C.TAB.", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "DELTA PHARMA", "price_egp": 3.75, "pack_count": 10, "unit_price": 0.38, "strength_mg": 400.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "NOVA-PROFEN 400MG 30 F.C. TABLETS", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "SANOFI", "price_egp": 12.75, "pack_count": 30, "unit_price": 0.42, "strength_mg": 400.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "IBUPROFEN 400 MG 10 TAB.", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "SEDICO", "price_egp": 6.0, "pack_count": 10, "unit_price": 0.6, "strength_mg": 400.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "MAFO 400 MG 30 F.C.TABS", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "EIPICO", "price_egp": 42.0, "pack_count": 30, "unit_price": 1.4, "strength_mg": 400.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "BRUFEN 400 MG 30 TABS.", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "KAHIRA > ABBOTT LABORATORIES", "price_egp": 78.0, "pack_count": 30, "unit_price": 2.6, "strength_mg": 400.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "PROFUSOL 400MG 20 S.G CAPS.", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "EUROPEAN EGYPTIAN PHARM. IND.", "price_egp": 31.0, "pack_count": null, "unit_price": null, "strength_mg": 400.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "ANALGIPROF 400 MG 25 SACHETS", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "EVA PHARMA", "price_egp": 37.5, "pack_count": null, "unit_price": null, "strength_mg": 400.0, "exact_strength": true, "exact_form": true, "discontinued": false, "also_contains": null }, { "trade_name": "NOVA-PROFEN 100MG/5ML ORAL SUSP. 100ML", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "SANOFI", "price_egp": 2.25, "pack_count": null, "unit_price": null, "strength_mg": 100.0, "exact_strength": false, "exact_form": false, "discontinued": false, "also_contains": null }, { "trade_name": "BRUFEMOL-N SUSP. 60 ML", "scientific_name": null, "normalized_ingredient": null, "manufacturer": "ARAB DRUG COMPANY (ADCO)", "price_egp": 4.5, "pack_count": null, "unit_price": null, "strength_mg": null, "exact_strength": false, "exact_form": false, "discontinued": false, "also_contains": null } ], "condition_id": "erythema-infectiosum" } ] }