Aerius® (Desloratadine) Antihistamine for Allergy Relief

What Aerius® Is and How It Works

Aerius is the brand name for desloratadine, a non-drowsy antihistamine. It relieves symptoms of allergic rhinitis and chronic idiopathic urticaria. Common targets include sneezing, runny or itchy nose, itchy eyes, and hives. Adults often use Aerius 5 mg once daily for 24-hour relief. If you compare Aerius price options, many people choose Canadian pricing for value, including aerius without insurance.

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Desloratadine blocks H1 histamine receptors. This reduces the allergic cascade that drives itching and swelling. It does not cross the blood–brain barrier much, so sedation is uncommon. Aerius is available as 5 mg tablets, orally disintegrating tablets (ODT), and a pediatric liquid (Aerius 0.5 mg/mL). Some markets offer a decongestant combination for 12-hour use. Speak with a healthcare professional to confirm the right format.

Dosage and Usage

• Adults and adolescents 12 years and older: 5 mg once daily (Aerius 5 mg). Swallow tablets with water. For ODT, place on the tongue to dissolve.
• Children 6–11 years: 2.5 mg once daily. Use the 0.5 mg/mL liquid to measure the dose precisely.
• Children 1–5 years: 1.25 mg once daily. Use the pediatric liquid (Aerius 0.5 mg/mL).
• Infants 6–11 months: 1 mg once daily, when prescribed. Use the oral liquid only.
• Take at the same time each day for steady 24-hour coverage.
• Missed dose: take when remembered. Skip if near the next dose. Do not double.
• Do not exceed the recommended daily dose unless directed by a prescriber.
• Measure liquid with a dosing syringe or marked cup. Do not use a kitchen spoon.

• Storage: keep tablets and liquid at 15–25 °C (59–77 °F). Protect tablets from moisture.
• Do not freeze the oral liquid. Keep the bottle tightly closed.
• Store in the original packaging and away from children and pets.
• For travel, carry your medicine in hand luggage. Keep it dry and at room temperature.
• Do not leave doses in a hot car or near direct heat or sunlight.
• Carry your prescription label or a copy of your order invoice when crossing borders.

Benefits and Savings

Aerius helps control nasal and eye symptoms from seasonal and perennial allergies. It also treats itchy skin and hives in chronic urticaria. Many people experience once-daily, non-drowsy relief. The 24-hour formulation supports steady symptom control. Pediatric liquid dosing allows accurate, age-appropriate therapy.

Buying from Canada can lower your Aerius cost. Typical savings range from 60–80% versus common US prices. This can help anyone comparing Aerius 5 mg price or looking at an aerius cash price, including purchases without insurance. Multi-month supplies may reduce the average per-month cost.

For extra value, see current offers on our promotions page via the aerius coupon.

Side Effects and Safety

• Common effects: dry mouth, tiredness, headache, sore throat, and mild stomach upset.
• Less common: dizziness, drowsiness, muscle aches, or mouth/throat discomfort.
• Allergic reactions are rare but serious: rash, swelling, trouble breathing, or severe dizziness.
• Drug interactions are minimal. Always share a full medication list with the prescriber.
• Alcohol can increase drowsiness in sensitive individuals.

Seek urgent care for symptoms of a severe allergic reaction. People with significant kidney or liver impairment may need a different dose or medicine. During pregnancy or breastfeeding, discuss benefits and risks first. Desloratadine may pass into breast milk. Aerius and breastfeeding decisions should involve a healthcare professional.

Onset Time

Many people feel relief within 1–2 hours after a dose. Nasal congestion related to allergies may take longer to improve. Steady daily use supports consistent control over the first several days. For chronic hives, itching may settle after the first dose, with wheals improving over continued daily use.

Compare With Alternatives

Other second-generation antihistamines include loratadine, cetirizine, and fexofenadine. Cetirizine may work faster for some people but can cause more drowsiness. Fexofenadine has low sedation risk and may suit those sensitive to sleepiness. Loratadine is similar in class to desloratadine but may be less potent dose-for-dose.

Leukotriene receptor antagonists, such as Montelukast, can help allergic rhinitis, especially when nighttime symptoms or asthma co-exist. They are not antihistamines, and response varies. A prescriber may suggest a trial during peak allergy season.

For allergic conjunctivitis, lubricants and topical antihistamine eye drops help. Pataday® (olopatadine) targets itchy, watery eyes directly and pairs well with an oral antihistamine when eye symptoms dominate.

Combination Therapy

• Oral antihistamine + intranasal corticosteroid (e.g., fluticasone) for moderate to severe nasal symptoms.
• Oral antihistamine + antihistamine eye drops for bothersome eye itching and tearing.
• Oral antihistamine + short-term oral decongestant (pseudoephedrine) for congestion, if appropriate.
• Avoid taking two systemic antihistamines at the same time unless directed by a clinician.
• Review other sedating medicines to lower the chance of additive drowsiness.

Patient Suitability and Cost-Saving Tips

Aerius suits adults and children who need once-daily relief from seasonal or perennial allergic rhinitis. It also treats chronic idiopathic urticaria. It is not a rescue medicine for anaphylaxis. People with severe renal or hepatic impairment, or those who had a hypersensitivity reaction to desloratadine or loratadine, may need a different option.

Discuss use during pregnancy and lactation. Decisions about Aerius and breastfeeding should consider symptom severity and alternatives. For infants and young children, use the pediatric liquid with age-appropriate dosing under professional guidance.

To manage costs, compare Aerius price by pack size. Larger supplies can lower per-month costs. Use refill reminders so you do not run out during peak seasons. If you pay aerius without insurance, Canadian pricing may offer meaningful savings.

Authoritative Sources

Bayer Canada Aerius Product Information

Health Canada Drug Product Database: Desloratadine Listings

FDA Prescribing Information for Desloratadine (Clarinex)

Order Aerius® from YouDrugstore: add to cart, upload your prescription, and we ship with prompt, express shipping.

This information is educational and does not replace advice from your healthcare professional. Always follow your prescriber’s directions and the product label.