clarinex d 24 hour

How long does Desloratadine and Pseudoephedrine Sulfate stay in your body?

The elimination half-life of desloratadine and pseudoephedrine sulfate is roughly 3 to 16 hours — the label does not give one number, because the elimination half-life depends on urine pH: about 3 to 6 hours when urine pH is 5 (acidic), and about 9 to 16 hours when urine pH is 8 (alkaline) — the time it takes the body to clear about half of it. As a rule of thumb, a medicine is mostly gone after roughly 4 to 5 half-lives, though this varies from person to person with age and kidney or liver function. This is a genuinely variable half-life, not a fixed one. Pseudoephedrine is cleared mostly unchanged by the kidneys (55% to 96% of a dose appears unchanged in urine), and because it is a base, acidic urine traps and flushes it out faster while alkaline urine lets it be reabsorbed — hence the 3-6 h vs 9-16 h spread the label reports. No active metabolite to worry about: the label says less than 1% is metabolized in the liver, by N-demethylation, to an INACTIVE metabolite. It is not a prodrug. Kidney impairment: because clearance is renal, the label states pseudoephedrine "may accumulate in patients with renal impairment," and the product is to be generally avoided in these patients — expect a longer half-life, though the label does not quantify it. Liver impairment: no studies of pseudoephedrine were conducted in hepatic impairment, so the label gives no number; the product is likewise to be generally avoided. Older adults: this label gives no separate pseudoephedrine half-life for people 65+ (its geriatric pharmacokinetic data covers the antihistamine component only), but it warns that older adults are more likely to have adverse reactions to sympathomimetic amines. The half-life above is from the Clarinex-D 12 Hour label, which is where FDA-approved pseudoephedrine pharmacokinetics are published; standalone OTC pseudoephedrine products carry monograph "Drug Facts" labels that contain no pharmacokinetics section at all.

This is general information, not medical advice. It doesn’t tell you when a drug test would read negative (tests detect substances for different, often longer, windows) or when it’s safe to take another dose — ask your pharmacist or prescriber. Source: CLARINEX-D 12 HOUR (desloratadine and pseudoephedrine sulfate) extended release tablets — Section 12.3 Pharmacokinetics, DailyMed.

Frequently asked questions

How is Clarinex D 24 Hour rated?

pharmaranks gives Clarinex D 24 Hour a composite score of 3.5 out of 5, currently based on 1 weighted source (FDA regulatory recall-safety data weighted highest). See our methodology at /how-we-rate.

How much does Clarinex D 24 Hour cost?

Nobody can tell you what you will pay — your price is set by your insurer's formulary, your deductible and the pharmacy's markup, and none of those are published. What IS published is what the pharmacy paid to acquire it: about $8.91 for 30, per the CMS NADAC survey. Treat that as the floor, not the quote — ask the pharmacist for the cash price as well as your copay, because for cheap generics the cash price often wins.

Is there a coupon or discount for Clarinex D 24 Hour?

pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Clarinex D 24 Hour. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.

Who makes Clarinex D 24 Hour?

Clarinex D 24 Hour is marketed by Organon. You can see Organon's full profile, rating, and other products on pharmaranks.

Is Clarinex D 24 Hour a brand-name or generic drug?

Clarinex D 24 Hour is a brand-name product with the active ingredient Desloratadine and Pseudoephedrine Sulfate.

Is Clarinex D 24 Hour available over the counter?

No. Clarinex D 24 Hour is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.

What forms does Clarinex D 24 Hour come in?

Clarinex D 24 Hour is currently marketed as tablet, extended release, per the FDA's National Drug Code Directory.

Is Clarinex D 24 Hour FDA-registered?

Clarinex D 24 Hour is on record with the U.S. FDA under application number NDA021605. You can verify this on its official FDA label.

Has Clarinex D 24 Hour been recalled by the FDA?

Clarinex D 24 Hour has no FDA recalls recorded under its own application in the openFDA enforcement database. Its recall-safety score reflects its manufacturer's overall recall record. This is general reference, not medical advice — check the FDA recall database for the latest alerts.

Is Clarinex D 24 Hour safe?

There's no single safe-or-not verdict. pharmaranks gives Clarinex D 24 Hour a recall-safety score of 70/100, based on its FDA recall history (no recalls under its own FDA application) — not an efficacy or side-effect rating. Review its FDA-label side effects and warnings before use, and always consult a licensed professional.