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Valtrex

Valacyclovir

Antiviral / AntifungalTablet500mgATC J05AB11

Ingredients & Drug Type

Valtrex is listed as Antiviral / Antifungal containing Valacyclovir. A medicine used according to its active ingredient, dosage form, and the patient’s condition.

Active ingredient
Valacyclovir
Therapeutic class
Antiviral / Antifungal
Dosage form
Tablet
Strength
500mg

Dosing

Frequency
مرتين يومياً
Duration
5–10 أيام
Route
oral
  • Common catalog dose: 500mg.
  • Frequency: مرتين يومياً.
  • Typical duration: 5–10 أيام.
  • Route: oral.
  • The final dose depends on diagnosis, age, weight, kidney/liver function, pregnancy status, and other medicines.
  • Use the dose written by your doctor or pharmacist; this page is educational and not a personal prescription.
Pregnancy Category
B — No clear risk shown in studies

Medical Overview

Valtrex is listed as Antiviral / Antifungal containing Valacyclovir. A medicine used according to its active ingredient, dosage form, and the patient’s condition.

Valtrex (valacyclovir) — aciclovir’s convenient prodrug: 3-5× absorption turns five daily doses into 2-3, with the famous one-day cold-sore regimen (2g BID at first tingle) and documented ~50% partner-transmission reduction on daily genital-herpes suppression. Same family rules: shingles within 72h, generous hydration, renal dose adjustment, eye-area zoster is an emergency.

Uses / Indications

  • Herpes simplex
  • Herpes zoster
  • Used for indications selected by a clinician or pharmacist based on diagnosis and the official leaflet.

Side Effects

  • Headache
  • nausea
  • Side effects vary by active ingredient, dose, and patient factors.

Contraindications

  • حساسية للأسيكلوفير/فالاسيكلوفير. القصور الكلوي: تعديل إلزامي. الحمل: يستخدم عند الحاجة الواضحة بقرار الطبيب (بيانات العائلة مطمئنة نسبياً).
  • Previous allergy to the active ingredient or any component.

Warnings

  • قواعد الوقت العائلية تحفظ: حزام ناري = 72 ساعة (وقربه من العين طوارئ عيون)
  • حبة حرارة = أول وخزة لا أول قشرة. اشرب بسخاء مع جرعاته. للكبح التناسلي: الدواء يخفض العدوى ولا يلغيها — المصارحة والواقي يبقيان جزء الخطة. نوبات هربس متقاربة رغم الكبح = مراجعة جرعة ومناعة. احجز جلدية عبر كلينكس جو.
  • Do not start, stop, or change dose without medical advice, especially during pregnancy or chronic disease.

Drug Interactions

  • قليلة كأبيه: البروبينسيد والسيميتيدين يرفعانه
  • والأدوية المجهدة للكلى تتراكب عبئاً (مضادات التهاب مزمنة). لا صدامات كبرى.
  • Tell your clinician or pharmacist about all medicines, supplements, and herbs you use.

Patient Guidance

  • Read the patient leaflet.
  • Use only as prescribed.
  • Ask a pharmacist if anything about use is unclear.

Before Using This Medicine

Tell your clinician before use if you have

  • Any previous allergy to this medicine, its class, or any ingredient.
  • Pregnancy, breastfeeding, planned pregnancy, or fertility treatment.
  • Kidney, liver, heart, stomach ulcer, bleeding, epilepsy, or chronic disease history.
  • Regular medicines, supplements, herbal products, or alcohol use.

Seek urgent care if you notice

  • Breathing difficulty, face or throat swelling, severe rash, fainting, or chest pain.
  • Severe diarrhea, black stools, vomiting blood, yellow eyes, confusion, or unusual bleeding.
  • Any symptom that feels severe, new, or rapidly worsening after taking the medicine.

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Storage & Manufacturer

Storage:
Store at room temperature away from heat, moisture, and direct sunlight unless the package label says otherwise.

Trusted Medical Sources

Use these references to verify official labeling, patient information, therapeutic class, dosing cautions, contraindications, and safety updates.

Common Questions

What is Valtrex?

Valtrex contains Valacyclovir and is categorized as Antiviral / Antifungal. Its exact use depends on diagnosis and the official product label.

What is the dose of Valtrex?

Catalog dosing information includes: 500mg. The personal dose must be confirmed by a doctor or pharmacist.

What warnings matter before using Valtrex?

Check allergies, pregnancy or breastfeeding, chronic disease, and all current medicines before use. Seek urgent care for severe allergy or rapidly worsening symptoms.

How should Valtrex be stored?

Store at room temperature away from heat, moisture, and direct sunlight unless the package label says otherwise.

Medical disclaimer: This page is for educational purposes only. It does not replace personalized advice from a licensed pharmacist or your treating physician. Dose, interactions, and contraindications may vary by individual patient. Always confirm with your healthcare provider before starting, stopping, or changing any medication.

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