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What Claritin® Is and How It Works
Claritin Allergy & Sinus combines loratadine, a non-drowsy antihistamine, with pseudoephedrine, a nasal decongestant. It helps relieve sneezing, runny nose, itchy eyes, and sinus pressure from seasonal or indoor allergies. Tablets are oral and extended-release. Options include 12-hour and 24-hour strengths. Many people choose Claritin Allergy & Sinus for fast, long-lasting congestion relief. It also supports clear breathing during pollen peaks. If you need Claritin without insurance, YouDrugstore offers transparent pricing and US shipping.
YouDrugstore is a licensed Canadian pharmacy headquartered in Manitoba. Prescriptions are reviewed by licensed pharmacists before dispensing, and we also carry OTC health products at Canadian prices. You can order online, and customer-service chat is available during posted office hours.
Loratadine blocks H1 histamine receptors. This reduces allergy symptoms such as sneezing and itching. Pseudoephedrine constricts nasal blood vessels. This shrinks swollen tissue and opens the sinuses. The 12-hour tablet contains 5 mg loratadine with 120 mg pseudoephedrine. The 24-hour tablet contains 10 mg loratadine with 240 mg pseudoephedrine. Adults and adolescents 12 years and older use one tablet per labeled interval. Tablets are designed to release medicine steadily over time.
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Dosage and Usage
- Adults and adolescents 12 years and older: follow the product strength. 12-hour: one tablet every 12 hours. 24-hour: one tablet once daily.
- Swallow tablets whole with water. Do not crush, split, or chew extended-release tablets.
- Take with or without food. Avoid taking close to bedtime if sensitive to stimulants.
- Do not exceed the labeled dose. Higher doses increase side effects without added benefit.
- If a dose is missed, skip it when near the next scheduled time. Do not double dose.
- Do not use under age 12. Pseudoephedrine is not recommended for younger children.
- Avoid use within 14 days of a monoamine oxidase inhibitor (MAOI).
- Avoid combining with other decongestants or stimulant products, including some cold medicines.
- People with hypertension, heart disease, diabetes, thyroid disease, glaucoma, or prostate enlargement should consult a professional before use.
- Stop use and seek advice if symptoms persist beyond seven days or worsen.
- Store at 15–25 °C (59–77 °F) in a dry place. Keep away from moisture and direct heat.
- Keep tablets in the original blister or bottle with the label intact.
- When you travel, carry the medication in your hand luggage. Protect from crushing.
- Do not leave tablets in a hot car, near heaters, or in direct sunlight.
- Keep out of reach of children and pets. Use child-resistant caps.
- Check expiry dates before each trip. Pack enough for the full stay plus a few days.
- When you fly, keep a copy of the product label for security checks.
Benefits and Savings
Claritin Allergy & Sinus offers dual relief. Loratadine addresses allergy symptoms, and pseudoephedrine opens the nose and sinuses. Many users feel clearer breathing and less facial pressure. The 12-hour option supports day and evening coverage. The 24-hour option simplifies to one tablet per day. The antihistamine is non-drowsy for most people.
Ordering from a Canadian pharmacy often cuts costs. Typical savings range from 60–80% versus many US prices. This can help when buying Claritin without insurance. You can choose single packs or stock up to reduce per-month costs. Reorder reminders help you stay on schedule during allergy season.
For promotions, see our claritin coupon.
Side Effects and Safety
- Dry mouth or throat
- Nervousness or restlessness
- Insomnia or difficulty sleeping
- Headache
- Dizziness
- Nausea or stomach discomfort
- Increased heart rate or palpitations
- Shakiness or tremor
Serious effects are uncommon but can occur. Stop use and seek medical help if you notice chest pain, severe or worsening hypertension, fainting, irregular heartbeat, severe headache, sudden vision changes, allergic reaction, urinary retention, or seizures. Do not use within 14 days of an MAOI. People with narrow-angle glaucoma, significant prostate enlargement, or severe heart disease should avoid decongestants unless advised otherwise. Use caution in pregnancy or while breastfeeding.
Onset Time
Relief can start within 1–3 hours for many people. Nasal congestion and sinus pressure often improve first. Antihistamine benefits for sneezing and itchy eyes build through the day. The 12-hour tablet maintains effect for about 12 hours. The 24-hour tablet works across a full day. Steady day-to-day use during high-allergen periods can smooth symptoms.
Compare With Alternatives
Plain loratadine (Claritin) suits people who have allergy symptoms without nasal congestion. It avoids the stimulant effects of pseudoephedrine. This can be better for those who are sensitive to insomnia or palpitations.
Cetirizine with pseudoephedrine (often called a “D” formula) offers strong antihistamine effects with a similar decongestant. Some find cetirizine more sedating. It may help if eye and skin itching are prominent.
Fexofenadine with pseudoephedrine is another non-drowsy option. It tends to be less sedating and can be taken daytime. Intranasal steroid sprays, like fluticasone or mometasone, help reduce nasal inflammation. Many patients use a spray with an oral antihistamine during heavy pollen seasons.
Combination Therapy
- Combine with a saline nasal rinse to clear thick mucus and improve comfort.
- Pair with an intranasal steroid spray for persistent nasal swelling or polyps.
- Use with lubricating eye drops for itchy, watery eyes.
- Avoid additional oral decongestants or stimulant products to reduce side effects.
- Do not duplicate antihistamines. Choose one oral antihistamine at a time.
- Limit caffeine if nervousness or insomnia occurs.
Patient Suitability and Cost-Saving Tips
Claritin Allergy & Sinus is intended for adults and adolescents 12 years and older with allergic rhinitis and bothersome nasal congestion. It is not for children under 12. People with uncontrolled high blood pressure, serious heart disease, narrow-angle glaucoma, urinary retention, severe kidney disease, or hyperthyroidism may not be candidates. Do not use if taking an MAOI or within 14 days of stopping one.
Consider the 24-hour tablet if once-daily dosing helps adherence. Choose the 12-hour tablet if evening stimulation disrupts sleep. Compare sizes and multi-month supplies; bulk promotions can lower your monthly cost. Set a reminder in your account to reorder before the season peak. If you shop Claritin no insurance, compare both strengths to find the best value per dose.
Authoritative Sources
Claritin Allergy + Sinus product details (Bayer Canada)
Health Canada Drug Product Database: loratadine/pseudoephedrine
DailyMed monographs for loratadine and pseudoephedrine ER tablets
Order Claritin® from Youdrugstore: add to cart and check out, and we ship with prompt, express shipping.
This material is educational and does not replace professional medical advice. Always read and follow the product label. Speak with a qualified healthcare professional about your specific health questions.
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Is Claritin Allergy & Sinus the same as Claritin-D?
Yes. Claritin Allergy & Sinus contains loratadine and pseudoephedrine, similar to products commonly called Claritin-D. The 12-hour tablet is 5 mg/120 mg, and the 24-hour tablet is 10 mg/240 mg. Both relieve allergies with nasal congestion. Claritin Allergy & Sinus may last 12 or 24 hours depending on the strength selected.
How do I choose between 12-hour and 24-hour tablets?
Choose based on symptom pattern and tolerance. The 12-hour tablet lets you avoid a nighttime dose if stimulation affects sleep. The 24-hour tablet offers once-daily convenience. Do not exceed labeled dosing. If symptoms persist, consider combining with a nasal steroid spray as advised by a professional.
Can I take Claritin Allergy & Sinus if I have high blood pressure?
Pseudoephedrine can raise blood pressure and heart rate. People with hypertension or heart disease should seek professional guidance before use. Avoid use with severe or uncontrolled hypertension. Do not combine with other decongestants or stimulants. Stop and seek help if you notice chest pain, severe headache, or palpitations.
What side effects are most common with this product?
Common effects include dry mouth, nervousness, insomnia, headache, dizziness, nausea, and faster heartbeat. Many are mild and improve as the dose wears off. Serious reactions are uncommon but need prompt attention. Do not use within 14 days of an MAOI. Avoid duplicate decongestants to reduce side effects.
How can I save on Claritin without insurance?
Buying from a licensed Canadian pharmacy can lower costs by 60–80% versus many US prices. Compare 12-hour and 24-hour pack sizes, and look for multi-pack promotions. Set reorder reminders to avoid rush purchases. You can also compare Claritin price per tablet across sizes to find the best value.
How fast does Claritin Allergy & Sinus start working?
Many people feel nasal relief within 1–3 hours. Congestion and pressure ease first. Antihistamine benefits for sneezing and itchy eyes increase through the day. The 12-hour tablet typically lasts up to 12 hours. The 24-hour tablet provides all-day coverage when taken as directed.