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Ithoxia
Ithoxia is a brand name for fexofenadine, a second-generation antihistamine primarily used to relieve allergy symptoms. It is effective in treating seasonal allergic rhinitis (hay fever) and chronic idiopathic urticaria (hives). Fexofenadine works by blocking the action of histamine, a substance in the body that causes allergic symptoms, making it a popular choice for individuals seeking relief from allergy-related discomfort.
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Frequently Asked Questions
How long does it take for Ithoxia to work?
Ithoxia usually begins to relieve allergy symptoms within 1 hour after taking the dose, with optimal effects observed over several days of consistent use.
Can I take Ithoxia with other medications?
Inform your healthcare provider about all medications and supplements you are taking to avoid potential interactions, particularly with antacids.
What should I do if I miss a dose of Ithoxia?
If you miss a dose, take it as soon as you remember. If it’s close to the time for your next dose, skip the missed dose and continue with your regular schedule. Do not double up on doses.
Is Ithoxia safe to use during pregnancy?
Ithoxia is generally considered safe for use during pregnancy, but it is recommended to consult your healthcare provider before using any medication.
Can Ithoxia cause drowsiness?
While it is less sedating than first-generation antihistamines, some individuals may experience drowsiness. Use caution when performing tasks that require alertness until you know how Ithoxia affects you.
Comprehensive Drug Guide
How Does Ithoxia Work?
Fexofenadine works by selectively blocking H1 receptors in the body, preventing the action of histamine. By inhibiting histamine's effects, fexofenadine reduces symptoms such as sneezing, itching, runny nose, and hives without causing significant sedation, as it does not readily cross the blood-brain barrier.
Common Dosages
- 30 mg, 60 mg, 120 mg, and 180 mg tablets.
- 30 mg orally disintegrating tablets.
- Children's suspension (typically 30 mg/5 mL).
The recommended dosages vary based on age and condition:
- For seasonal allergic rhinitis: The usual dose is 60 mg twice daily or 180 mg once daily for adults and children aged 12 years and older. For children aged 6 to 11 years, the recommended dose is 30 mg twice daily.
- For chronic idiopathic urticaria: The usual dose is 60 mg twice daily for adults and children aged 12 years and older.
Typical Dosing
- For seasonal allergic rhinitis: Adults and children over 12 years: 180 mg once daily or 60 mg twice daily. For children 6 to 11 years: 30 mg twice daily.
- For chronic idiopathic urticaria: Adults and children over 12 years: 60 mg twice daily.
Typical Dosing
FDA Approved Indications
- Relief of symptoms associated with seasonal allergic rhinitis in adults and children.
- Treatment of chronic idiopathic urticaria (hives) in adults and children.
Who Shouldn't Take Ithoxia?
- Known hypersensitivity or allergy to fexofenadine or any components of the formulation.
- Severe renal impairment (caution is advised).
Advice From The Pharmacist
- Follow the dosage instructions provided by your healthcare provider or as indicated on the package. Do not exceed the recommended dose.
- Take fexofenadine with water; avoid taking it with fruit juices (like orange, grapefruit, or apple) as they may reduce absorption.
- Avoid alcohol while taking Ithoxia, as it may increase the risk of side effects such as drowsiness.
- Monitor for allergic reactions: If you experience symptoms such as rash, swelling, or difficulty breathing, seek medical attention immediately.
Side Effects of Ithoxia
Common Side Effects
- Headache
- Dizziness
- Nausea
- Dry mouth
Uncommon/Severe Side Effects
- Severe allergic reactions (e.g., rash, itching, swelling)
- Heart palpitations or rapid heart rate
Risks and Warnings of Ithoxia
- Caution in Renal Impairment: Patients with kidney issues should use Ithoxia with caution and may require dosage adjustments.
- Possible Drowsiness: Although fexofenadine is less sedating than first-generation antihistamines, some individuals may still experience drowsiness. Use caution when driving or operating machinery until you know how the medication affects you.
Interactions with Ithoxia
Common Drug Interactions
- Antacids: Aluminum- or magnesium-containing antacids can decrease the absorption of fexofenadine if taken simultaneously. It is advised to take these medications at least 2 hours apart.
- Other antihistamines: Combining with other antihistamines may increase the risk of side effects.
Alternatives to Ithoxia
- Loratadine (Claritin): Another second-generation antihistamine used for similar indications.
- Cetirizine (Zyrtec): A commonly used antihistamine that may cause more sedation than fexofenadine.
- Diphenhydramine (Benadryl): A first-generation antihistamine that is effective but may cause sedation.
