Allegra 12hours (Fexofenadine - Non Rx) Medication


Allegra 12hours (Fexofenadine - Non Rx)

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Allegra 12hours is used to alleviate symptoms of seasonal allergic rhinitis, such as runny nose, sneezing, itchy and watery eyes, as well as itching of the nose and throat in adults and children. 

Moreover, Allegra 12hours is used to relieve symptoms of urticaria (hives), such as itching and rash, in adults and children aged 6 months and above. 

Classified as an antihistamine, Allegra 12hours works by inhibiting the effects of histamine, a substance in the body responsible for allergy symptoms. 

Uses and Dosage 

Before using Allegra 12hours for the first time and with each refill, carefully read all instructions provided on the product packaging. Should you have any questions or concerns, seek advice from your doctor or pharmacist. 

Typically, Allegra 12hours is taken twice daily (every 12 hours) with a glass of water. Avoid exceeding 2 tablets within 24 hours. If this medication is prescribed by your doctor, follow their instructions diligently. 

For optimal effectiveness, avoid taking this medication with fruit juices like orange, grapefruit, or apple juice. 

Consult a medical professional if there is no improvement in your symptoms or if they worsen after taking Allegra 12hours. 

Side Effects 

Common Side Effects 

  • Cough 
  • Fever 
  • Upset stomach 

Tell your doctor or pharmacist if any of the above common side effects last or worsen. 

Allergic Reactions 

Seek urgent medical assistance if you experience signs of an allergic reaction to Allegra 12hours, such as: 

  • Rash 
  • Difficulty breathing 
  • Itching or swelling, especially of the face, tongue, or throat 
  • Severe dizziness 

This list does not encompass all potential side effects of Allegra 12hours. If you notice any unlisted effects, report them to your doctor or pharmacist. 


Seek advice from a healthcare professional before using Allegra 12hours if you: 

  • Have any known allergies, particularly to fexofenadine or to any inactive ingredients present in Allegra 12hours tablet 
  • Have other medical conditions, particularly kidney disease 
  • Are taking any medication, including prescription and nonprescription medicines, vitamins, supplements, and herbal products 

Avoid taking antacids containing aluminum and magnesium within a 2-hour timeframe of Allegra 12hours intake, as they can reduce the absorption of fexofenadine. 

Allegra 12hours could potentially disrupt specific lab tests (allergy skin testing) leading to inaccurate results. Ensure that lab personnel and all your medical providers are informed of your use of this medication. 

The potential impact of Allegra 12hours on an unborn baby is uncertain. Inform your doctor if you are pregnant or intend to conceive before taking this medication. 

The transfer of fexofenadine into breast milk and its potential impact on a nursing baby is unknown. Consult your doctor before using this medication if you are breastfeeding. 

Additional information

Generic name:

Fexofenadine – Non Rx





Quantities Available:

36, 72

Quality Prescription Drugs has provided information from third parties intended to increase awareness and does not contain all the information about Allegra 12hours (Fexofenadine - Non Rx). Talk to your doctor or a qualified medical practitioner for medical attention, advice, or if you have any concerns about Allegra 12hours (Fexofenadine - Non Rx).