Indications
Allegra 12hours is an over counter medication used to treat allergy symptoms such as runny nose, sneezing, itching, and watery eyes. It contains the active ingredient fexofenadine, which is an antihistamine that blocks the effects of histamine, a substance that causes allergy symptoms.
Fexofenadine is a non-drowsy formula that provides up to 12 hours of relief and is available in tablet form. It is used by adults and children 12 years and older to treat seasonal allergies, hives, and other allergic conditions.
Use and Dosage
Allegra 12hours comes in the form of Tablet to take it orally with a glass of water every 12 hours, not exceeding two tablets in 24 hours. Do not chew Allegra 12hours tablet, swallowed whole with water and dissolve slowly in the stomach. Chewing the tablet can result in the release of too much medication at once, which can increase the risk of side effects.
Patients should avoid taking antacids containing aluminum and magnesium within 2 hours of taking Allegra, as they can reduce the effectiveness of the medication. The recommended dosage for adults and children 12 years and older is one 60 mg tablet with water every 12 hours, not exceeding two tablets in 24 hours. Do not exceed the recommended dosage to avoid serious side effects.
Side Effects
Common Side Effects of Allegra 12hours (Fexofenadine - Non-Rx):
- Back pain
- Cough
- Diarrhea
- Dizziness
- Earache
- Fatigue
- Fever
- Headache
- Pain in the hands or feet
- Runny notice
- Stomach discomfort
- Upper respiratory tract infection
- Vomiting
Serious Side Effects of Allegra 12hours (Fexofenadine - Non-Rx):
- Hives
- Itching
- Rashes
- Shortness of breath or difficulty breathing
- Swelling of the body, particularly the face, tongue, and throat
- Trouble swallowing
- Wheezing
Forms and Strength
Allegra 12hours (Fexofenadine - Non-Rx) is available in the following forms and strength:
Allegra 12hours: Tablet
- 60 mg
Cautions
- Patients should avoid taking antacids containing aluminum and magnesium within 2 hours of taking Allegra, as they can reduce the effectiveness of the medication.
- Patients with kidney disease may need a lower dosage of Allegra.
- It is not recommended for pregnant or breastfeeding women, as the effects of the medication on the fetus or baby are unknown.
- Patients should avoid taking more than the recommended dosage of Allegra, as it can lead to serious side effects, including seizures and irregular heart rhythms.
- Patients should not take Allegra if they have a known allergy to fexofenadine or any of its ingredients.
- Patients should tell their healthcare provider about all medications they are taking, as some may interact with Allegra and cause serious side effects.
- Patients with liver disease should consult with their healthcare provider before taking Allegra, as it may increase the risk of side effects.
- Allegra may cause dry mouth, throat, or nose. Patients should stay hydrated by drinking fluids or using a humidifier.
- The safety and effectiveness of Allegra has not been established in children under 2 years old.
- Patients should avoid drinking fruit juices while taking Allegra, as they may reduce the effectiveness of the medication.
- Elderly patients may be more sensitive to the side effects of Allegra and may require a lower dosage.
- Patients who have a history of heart disease or are taking medications that affect heart rate or rhythm should use caution when taking Allegra, as it may cause a fast or irregular heartbeat.
- Patients with a history of seizures should use caution when taking Allegra, as it may lower the seizure threshold.
Frequently Asked Questions (FAQ)
Does Allegra 12hours cause sedation?
Allegra has the lowest risk of sedation out of all antihistamines.
Is Allegra 12hours more effective than Claritin for allergies?
Both Allegra and Claritin are second-generation antihistamines with a low risk of sedation. Allegra and Claritin are both effective for allergies.
What other medications may interact with Allegra 12hours?
Patients should tell their healthcare provider about all medications they are taking, as some may interact with Allegra and cause serious side effects.
What is the maximum dosage for Allegra 12hours?
Patients should not exceed two tablets of Allegra 12hours in 24 hours.
Resources
- https://www.target.com/p/allegra-12-hour-allergy-relief-tablets-fexofenadine-hydrochloride-24ct/-/A-15116793
- https://www.accessdata.fda.gov/drugsatfda_docs/label/2013/021909Orig1s007lbl.pdf
- https://www.goodrx.com/fexofenadine/what-is
- https://www.allegra.com/en-us/products/allergy-relief/12-hour-allergy-relief
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