# Acute urticaria (hives)

- Category: chronic
- Review status: reviewed (every claim checked against a document named on this page)
- Sources: EAACI/GA2LEN/EDF/WAO Urticaria Guideline 2021 · Egyptian National Drug Formulary - Endocrine System 2024 (prednisolone monograph) · Egyptian National Drug Formulary - Respiratory System 2026 (loratadine monograph) · Egyptian National Drug Formulary - Respiratory 2026 (fexofenadine monograph) · Levocetirizine dihydrochloride tablets US prescribing information, sections 1 and 2 Dosage and Administration (DailyMed SetID 8274ca80-e7d3-4f4f-9901-cc5c589b4fef)
- Verified date: 2026-08

## Verified against

- EAACI/GA2LEN/EDF/WAO Urticaria Guideline 2021
- Egyptian National Drug Formulary - Respiratory System 2026 (loratadine monograph)
- Egyptian National Drug Formulary - Endocrine System 2024 (prednisolone monograph)
- Egyptian National Drug Formulary - Respiratory 2026 (fexofenadine monograph)
- Levocetirizine dihydrochloride tablets US prescribing information, sections 1 and 2 Dosage and Administration (DailyMed SetID 8274ca80-e7d3-4f4f-9901-cc5c589b4fef)
- Acute urticaria (hives) - disease-level clinical article (urticaria-clinical.txt)

## Treatment metadata

- Cetirizine — 10 mg — oral.solid
- Loratadine — 10 mg — oral.solid
- Fexofenadine — 180 mg — oral.solid
- Referral & safety-netting (no drug therapy)
- Levocetirizine — 5 mg — oral.solid
- Prednisolone — 5 mg — oral.solid

## Complete treatment card

```text
ACUTE URTICARIA (HIVES)
Sources: EAACI/GA2LEN/EDF/WAO Urticaria Guideline 2021 · Egyptian National Drug Formulary -
         Endocrine System 2024 (prednisolone monograph) · Egyptian National Drug Formulary -
         Respiratory System 2026 (loratadine monograph) · Egyptian National Drug Formulary -
         Respiratory 2026 (fexofenadine monograph) · Levocetirizine dihydrochloride tablets US
         prescribing information, sections 1 and 2 Dosage and Administration (DailyMed SetID
         8274ca80-e7d3-4f4f-9901-cc5c589b4fef)
Review status: REVIEWED against EAACI/GA2LEN/EDF/WAO Urticaria Guideline 2021, Egyptian National
               Drug Formulary - Respiratory System 2026 (loratadine monograph),
               Egyptian National Drug Formulary - Endocrine System 2024
               (prednisolone monograph), Egyptian National Drug Formulary -
               Respiratory 2026 (fexofenadine monograph), Levocetirizine
               dihydrochloride tablets US prescribing information, sections 1 and 2
               Dosage and Administration (DailyMed SetID
               8274ca80-e7d3-4f4f-9901-cc5c589b4fef), Acute urticaria (hives) -
               disease-level clinical article (urticaria-clinical.txt)  (2026-08)

IS IT THIS? - reference only, to read alongside your own examination
  SYMPTOMS - what the patient reports (7)
    - Itchy pink-to-red wheals with a paler center are the defining lesion of urticaria  [itching ·
      urticaria]
    - Any single wheal fades within 24 hours and leaves no bruising or discoloration behind
    - Angioedema feels like numbness, tingling, or pain rather than itch, and can take up to 72
      hours to settle  [numbness · tingling]
    - Chronic spontaneous urticaria requires hives or swelling recurring for 6 weeks or more with no
      systemic disease found  [urticaria]
    - In darker skin the raised welt may be the same colour as the skin around it, or lighter, or
      darker, rather than pink
    - Close to 4 in 10 patients get swelling at the same time as the hives  [urticaria]
    - It costs sleep, school and work, and brings psychiatric illness with it
  SIGNS - what you find (3)
    - Wheals tend to favor pressure points like the waistline, armpits, and groin, though they can
      appear anywhere  [urticaria]
    - Firmly stroking the skin can raise a wheal at that spot, demonstrating dermographism
    - Angioedema swelling favors non-dependent areas such as the lips, eyelids, genitals, or limbs
  TESTS (7)
    - A complete blood count and ESR or CRP are the standard first labs and are usually normal in
      chronic hives
    - Eosinophilia on the count raises suspicion for a parasite or an atopic condition
    - Thyroid testing is skipped routinely unless another finding points to thyroid disease
    - Food-allergy testing is not warranted since IgE-mediated food reactions are an uncommon cause
      of chronic hives
    - A skin biopsy is reserved for lesions that hurt, look atypical, or come with fever or joint
      pain, raising concern for vasculitis
    - A low C4 in swelling without hives should prompt checking C1 inhibitor levels for angioedema
    - Severity and response can be scored with the Urticaria Activity Score or the Urticaria Control
      Test
  IF NOT THIS - what else fits (7)
    - Wheals lasting longer than 24 hours, or that are pigmented, scarred, or blistering, point away
      from ordinary hives
    - Urticarial vasculitis causes painful weals that persist beyond 24 to 48 hours, often with
      purpura
    - Bullous pemphigoid can start with a hive-like or eczema-like phase before tense blisters form
    - Cold-triggered hive-like or vasculitic lesions, possibly linked to hepatitis, point to
      cryoglobulinemia
    - Persistent pigmented spots with a positive Darier sign suggest cutaneous mastocytosis rather
      than urticaria
    - A fleeting salmon-colored rash with daily spiking fevers points to adult-onset Still disease
    - The inducible kind is set off by a specific physical trigger, such as pressure, vibration or a
      change of temperature
  Source  StatPearls "Chronic Urticaria" - disease-level clinical article
  Status  traced to the source above

Rx: Main treatment  |  Antihistamine

MAIN TREATMENT - choose one, plus any add-on marked below
1. CETIRIZINE                                             [1st line]
   Adult    10 mg once daily (may increase up to 40 mg daily in 2-4 divided doses under specialist
            care for severe urticaria) x 1-2 weeks
   Peds     2 to under 6 years: 2.5 mg twice daily (or 5 mg once daily)
            6 to under 12 years: 5 mg twice daily (or 10 mg once daily)
            12 years and over: 10 mg once daily
            (Child 2-5 years: 2.5 mg twice daily (or 5 mg once daily); 6-11 years: 5 mg twice daily
            (or 10 mg once daily); >=12 years: 10 mg once daily)
   Choice   Alternatives. All three are second-generation antihistamines; cetirizine has the
            strongest showing in urticaria specifically and is stocked by 8 products.
   Source   EAACI/GA2LEN/EDF/WAO Urticaria Guideline 2021
   Why      Second-generation non-sedating antihistamine that blocks H1 receptors to relieve the
            itch, wheal, and flare of acute urticaria; first-line symptomatic treatment, with
            escalation available under specialist care for severe cases.
   Caution  Non-sedating antihistamine, but mild somnolence can occur at standard or off-label high
            doses.
            Dose reduction is required in renal impairment (eGFR < 50 mL/min).
   Egypt    EPIRIZINE 10 MG 10 TABS.         EIPICO              15.50 EGP (1.55/unit)
            CETRITIN 10MG 20 TAB.            EL NILE.            42.00 EGP (2.10/unit)
            TOMAZINE 10MG 30 F.C. TABS.      ALFACURE PHAR...    63.00 EGP (2.10/unit)
            CETRAK 10 MG 20 TABS.            PHARCO              68.00 EGP (3.40/unit)
            HISTAZINE-1 10 MG 20 TABS.       AMRIYA              68.00 EGP (3.40/unit)
            ZYRTEC 10 MG 20 TAB.             GLAXO SMITHKLINE   100.00 EGP (5.00/unit)
            CETRICHEW 10MG 20 CHEWABLE F.C. TABS. AL ROWAD PHARMACEUTICAL INDUSTRIAL...    15.00 EGP
            HISTA CHEW 10 MG 20 CHEWABLE TAB. ARAB CAPS > ADVOCURE                         15.00 EGP
            LERGFREE 5MG/5ML SYRUP 120ML     DEBEIKY              9.00 EGP
                -> ? strength differs, ? different route - not oral solid
            EPIRIZINE 5MG/ML SYRUP 60 ML     EIPICO              19.00 EGP
                -> ? strength differs, ? different route - not oral solid

2. LORATADINE                                             [1st line]
   Adult    10 mg once daily x 1-2 weeks
   Peds     2 to under 12 years: 5 mg once daily at 30 kg or less; 10 mg once daily over 30 kg
            (Child 2-11 years (<30 kg): 5 mg once daily; (>30 kg): 10 mg once daily)
   Source   Egyptian National Drug Formulary - Respiratory System 2026 (loratadine monograph)
   Why      Second-generation non-sedating H1-antihistamine, an alternative to cetirizine for
            symptomatic relief of acute urticaria.
   Caution  Caution in severe hepatic impairment (start with 10 mg every other day).
   Egypt    HISTALONG 10 MG 20 TAB.          JEDCO INT. CO...    17.00 EGP (0.85/unit)
            UNILORATADINE 10 MG 20 TABS.     UNIPHARMA CO....    17.00 EGP (0.85/unit)
            SEDCLARIT 10MG 20 TAB.           SEDICO              19.50 EGP (0.97/unit)
            LORATADINE 10MG 10 TAB.          MISR                25.50 EGP (2.55/unit)
            ONY 10 MG 20 TABS.               UNIPHARMA           51.00 EGP (2.55/unit)
            ALLERGETONE 10 MG 20 TABS.       MARCYRL PHARM...    66.00 EGP (3.30/unit)
            CLARITINE 10MG 20 TAB.           SEDICO > BAYE...   110.00 EGP (5.50/unit)
            ALLERGIRAZ 10MG 30 DISINTEGRATING TABS. JEDCO INT. CO. FOR PHARMACEUTICA...    31.50 EGP
            LORANO 5MG/5ML SYRUP 60ML        MINA PHARM           5.00 EGP
                -> ? strength differs, ? different route - not oral solid
            UNILORATADINE 5MG/5ML SYRUP 100 ML UNIPHARMA CO. > UNIPHARMA                    9.00 EGP
                -> ? strength differs, ? different route - not oral solid

3. FEXOFENADINE                                           [1st line]
   Adult    180 mg once daily when required (adults and children 12 years and over) - While the
            urticaria is active; if it persists beyond 6 weeks it is chronic urticaria and needs
            reassessment rather than a repeat prescription
   Peds     6 to under 24 months: 15 mg (2.5 mL of suspension) twice daily
            2 to under 12 years: 30 mg (5 mL) twice daily
            12 years and over: 180 mg once daily
            (Urticaria is licensed from 6 months. Children 6-23 months: 15 mg (2.5 mL of suspension)
            twice daily. Children 2-11 years: 30 mg (5 mL) twice daily. 12 years and over: 180 mg
            once daily. Any degree of kidney impairment: 15 mg once daily under 2 years, 30 mg once
            daily at 2-11 years, 60 mg once daily at 12 years and over.)
   Source   Egyptian National Drug Formulary - Respiratory 2026 (fexofenadine monograph)
   Why      40 live products. The formulary lists relief of symptoms of urticaria, including chronic
            idiopathic urticaria, with a dedicated 180 mg once-daily dose. Unlike the cetirizine
            already listed it does not cross the blood-brain barrier appreciably, which matters for
            a driver or a machine operator.
   Caution  Use one non-sedating antihistamine - fexofenadine replaces the cetirizine or loratadine
            here, it does not add to them.
            Absorption falls with aluminium- or magnesium-containing antacids and with fruit juice.
            Fexofenadine 180mg film coated tablets SmPC section 4.5 (eMC product 14744) says "It is
            advisable to leave 2 hours between administration of fexofenadine hydrochloride and
            aluminium and magnesium hydroxide containing antacids". Allegra Hives 24HR (fexofenadine
            hydrochloride) 180 mg tablets, US OTC Drug Facts label (DailyMed SetID
            490b4c5f-448b-4563-928b-837117b59b9f) says "do not take with fruit juices" and directs
            that the 180 mg tablet be taken "with water".
            Renal impairment: 60 mg every 12-24 hours at eGFR 10-49, and 60 mg every 24 hours below
            eGFR 10 or on dialysis
            Urticaria lasting more than 6 weeks is chronic - look for a cause, check thyroid
            function, and consider referral rather than escalating the dose indefinitely.
            Angioedema of the lips, tongue or throat is not simple urticaria - treat as the
            angioedema condition.
   Egypt    ORGOFEXADINE 180MG 10 F.C. TAB.  ORGANOPHARMA ...     8.00 EGP (0.80/unit)
            RAPIDO 180MG 10 CAPS.            SEDICO              12.00 EGP (1.20/unit)
            FASTOFEN 180 MG 20 TAB.          EL-OBOUR            28.50 EGP (1.43/unit)
            FEXODINE 180MG 10 CAPS.          MEMPHIS             15.60 EGP (1.56/unit)
            FEXOSTADINE 180 MG 20 F.C. TABS. EIPICO              70.00 EGP (3.50/unit)
            FASTEL 180 MG 20 F.C. TABS.      EUROPEAN EGYP...    84.00 EGP (4.20/unit)
            TELFAST 180MG 20 F.C. TABS.      SANOFI             160.00 EGP (8.00/unit)
            LINOFENADINE 180MG 10 SCORED F.C.TAB. EGPI > HEALTH LINE INTERNATIONAL          7.50 EGP
            ALERTAM 30MG/5ML ORAL SUSP. 100ML MUP                                           8.50 EGP
                -> ? strength differs, ? different route - not oral solid
            FEXODINE 30MG/5ML ORAL SUSP. 100 ML MEMPHIS                                    10.00 EGP
                -> ? strength differs, ? different route - not oral solid

4. REFERRAL & SAFETY-NETTING (NO DRUG THERAPY)            [1st line]
   Adult    
   Source   Acute urticaria (hives) - disease-level clinical article (urticaria-clinical.txt)
   Why      Carries the referral criteria and warning signs for this condition, which apply
            whichever treatment is chosen.
   Caution  RED FLAG - The signs of anaphylaxis requiring immediate medical attention are throat or
            facial swelling, difficulty breathing, dizziness, and hypotension.

5. PREDNISOLONE                                           [add-on - not a substitute]
   Adult    30-40 mg once daily in morning for 3-5 days for severe acute urticarial flare x 3-5 days
   Peds     1 mg/kg/day  [child max 40 mg]
            (Child: 1 mg/kg once daily for 3 days (max 40 mg daily))
            3kg -> 3 mg/day             4kg -> 4 mg/day             5kg -> 5 mg/day
            6kg -> 6 mg/day             7kg -> 7 mg/day             8kg -> 8 mg/day
            9kg -> 9 mg/day             10kg -> 10 mg/day           11kg -> 11 mg/day
            12kg -> 12 mg/day           13kg -> 13 mg/day           14kg -> 14 mg/day
            15kg -> 15 mg/day           16kg -> 16 mg/day           17kg -> 17 mg/day
            18kg -> 18 mg/day           19kg -> 19 mg/day           20kg -> 20 mg/day
            21kg -> 21 mg/day           22kg -> 22 mg/day           23kg -> 23 mg/day
            24kg -> 24 mg/day           25kg -> 25 mg/day           26kg -> 26 mg/day
            27kg -> 27 mg/day           28kg -> 28 mg/day           29kg -> 29 mg/day
            30kg -> 30 mg/day           31kg -> 31 mg/day           32kg -> 32 mg/day
            33kg -> 33 mg/day           34kg -> 34 mg/day           35kg -> 35 mg/day
            36kg -> 36 mg/day           37kg -> 37 mg/day           38kg -> 38 mg/day
            39kg -> 39 mg/day           40kg -> 40 mg/day           41kg -> 40 mg/day (capped)
            42kg -> 40 mg/day (capped)  43kg -> 40 mg/day (capped)  44kg -> 40 mg/day (capped)
            45kg -> 40 mg/day (capped)  46kg -> 40 mg/day (capped)  47kg -> 40 mg/day (capped)
            48kg -> 40 mg/day (capped)  49kg -> 40 mg/day (capped)  50kg -> 40 mg/day (capped)
   Source   Egyptian National Drug Formulary - Endocrine System 2024 (prednisolone monograph)
   Why      Short burst oral corticosteroid for severe refractory angioedema/urticaria flare only;
            avoid long-term use
   Caution  Short course (<5 days) does not require taper.
            Side effects include insomnia, appetite stimulation, mood changes, and transient
            hyperglycemia.
   Egypt    HOSTACORTIN H 5MG 30 TAB.        SANOFI              12.00 EGP (0.40/unit)
            PREDNISOLONE 5 MG 20 TABS.       ARAB DRUG COM...    24.00 EGP (1.20/unit)
            PREDILONE 5MG 10 TAB. (25 STRIPS PACK) KAHIRA                    250.00 EGP (25.00/unit)
            EPICOPRED 5 MG 30 ORODISPERSIBLE TABS. EIPICO                                  69.00 EGP
            PREDNISOLONE-EVA 5 MG 30 ORODISPERSIBLE TABS. EVA PHARMA                       79.50 EGP
            DISPRELONE-OD 5 MG 30 ORODISPERSABLE TABS. ANDALOUS PHARMA                     84.00 EGP
            SOLUPRED ORO 5 MG 30 ORODISPERSIBLE TABS. SANOFI WINTHROP > SANOFI             84.00 EGP
            ACETASEE 1% EYE DROPS (SUSP.) 5 ML RAMEDA                                       7.50 EGP
                -> ? strength differs, ? different route - not oral solid
            PREDNIS 5MG/5ML SYRUP 100 ML     PHAROPHARMA          9.50 EGP
                -> ? strength differs, ? different route - not oral solid


ANTIHISTAMINE
6. LEVOCETIRIZINE                                         [2nd line]
   Adult    5 mg once daily in the evening - While symptoms persist; review at 4-6 weeks
   Peds     6 to 11 years: 2.5 mg once daily - half of the scored 5 mg tablet. The tablet has no
            dose below 6 years.
            (6-11 years: 2.5 mg once daily - half of the scored 5 mg tablet. The label gives no dose
            below 6 years for the tablet.)
   Source   Levocetirizine dihydrochloride tablets US prescribing information, sections 1 and 2
            Dosage and Administration (DailyMed SetID 8274ca80-e7d3-4f4f-9901-cc5c589b4fef)
   Why      The active enantiomer of cetirizine, and the one licensed specifically for chronic
            idiopathic urticaria. 30 live Egyptian products from 3.25 EGP. An alternative to the
            cetirizine above, not an addition - they are the same molecule.
   Caution  Do NOT give with cetirizine. Levocetirizine IS cetirizine's active half, so the two
            together are one drug at double the dose.
            Evening dosing is on the label, and it matters: urticaria itch is worst at night and
            this is the sedating end of the second-generation antihistamines.
            Reduce to 2.5 mg in mild renal impairment (creatinine clearance 50-80 mL/min) - a lower
            threshold than most drugs, and easy to miss in the elderly.
            Guidelines allow up-titration above the licensed dose in resistant chronic urticaria;
            that is a specialist decision and off-label, not a routine step.
   Egypt    ZALKEVOR 5 MG 10 F.C.TABS.       EL-OBOUR > RE...     5.50 EGP (0.55/unit)
            RHIPGIC 5 MG 30 F.C. TABS.       P & C LABS          19.50 EGP (0.65/unit)
            LERGOPAN 5 MG 10 F.C.TABS.       PHAROPHARMA          7.50 EGP (0.75/unit)
            LEVOCITRONE 5 MG 10 F.C.TABS.    EGYPHAR             21.00 EGP (2.10/unit)
            RAMATRIZINE  5 MG 30 F.C.TABS.   EGPI > RAMAPH...    96.00 EGP (3.20/unit)
            LEVOHISTAM 5 MG 30 F.C.TABS.     EGPI > UTOPIA      117.00 EGP (3.90/unit)
            ARAXILEVE 5 MG 30 ORO-DISPERSIBLE TABS. JEDCO INT. CO. FOR PHARMACEUTICA...    51.00 EGP
            LEVCET 5MG 20 ORODISSOLVABLE TABS. MARCYRL PHARMACEUTICAL INDUSTRIES (MPI)     85.00 EGP
            MERVOZA 2.5MG/5ML SYRUP 120 ML   GLOBAL NAPI P...     8.00 EGP
                -> ? strength differs, ? different route - not oral solid
            MODALLERGE 0.5MG/ML ORAL SOL.    EGPI > MODERN...     8.00 EGP
                -> ? strength differs, ? different route - not oral solid

Prices are indicative (dataset snapshot 2026-06); verify with the pharmacy.
```

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