Desloratadine Powder

What Is Desloratadine Powder?

Desloratadine (also written as DESloratadine) is the active metabolite formed from loratadine through in vivo deformylation of ethyl formate. This third-generation antihistamine exhibits powerful antiallergic properties, delivering rapid and long-lasting relief. Known for its high selectivity and strong affinity for peripheral H1 receptors, desloratadine is a modern therapeutic agent primarily used for treating seasonal allergic rhinitis and chronic idiopathic urticaria. In vitro studies expressing human H1 receptors—as conducted on platforms such as ChemBook—have shown that desloratadine provides 50 to 200 times greater H1-receptor antagonistic activity than loratadine, fexofenadine, or cetirizine. It is well-tolerated by patients, exhibits excellent safety profiles, and boasts a median half-life of 21 to 24 hours, enabling once-daily dosing. Notably, unlike terfenadine and astemizole (both withdrawn from commercial use in 1999), desloratadine does not induce any adverse effects on cardiac QT interval or ventricular heart rate.

Synonym

AzoMyr; Neoclarityn; NSC675447; Opulis; Desloratadine (Clarinex); 5H-Benzo[5,6]cyclohepta[1,2-b]pyridine, 8-chloro-6,11-dihydro-11-(4-piperidinylidene)-; ChemBook Desloratadine for System Suitability; Loratadine Related Compound A (15 mg) (8-chloro-6,11-dihydro-11-(4-piperidylidene)-5H-benzo[5,6]cyclohepta[1,2-b]pyridine)

Product Specification

Functions and Pharmacological Properties

1. Potent Antiallergic Action
   
   Desloratadine demonstrates significant anti-inflammatory and antihistaminic activity due to its selective, high-affinity binding to H1 receptors. In mouse models, it has shown efficacy four times stronger than loratadine in suppressing histamine-induced paw swelling. Further, it effectively inhibits the release of pro-inflammatory cytokines—including IL-3, IL-6, TNF-α, and GM-CSF—from activated human mast cells and basophils at nanomolar concentrations, outperforming both dexamethasone and cetirizine in comparative studies.

   
   

2. Rapid Onset and Sustained Efficacy
   
   As an intrinsically active compound, desloratadine is rapidly absorbed, with initial effects observed in under 30 minutes following oral administration. Its peak plasma concentration (Tmax) is reached at approximately 3 hours, with a single-dose Cmax of 3.98 ng·mL⁻¹ and a clearance rate ranging from 114 to 201 L·h⁻¹. Clinical trials in patients suffering from allergic rhinitis have confirmed its swift onset, averaging just 28.45 minutes—as opposed to 1 hour for loratadine and midazolastine, and 2 hours for cetirizine. With a sustained half-life of approximately 24 hours, desloratadine provides convenient, once-daily dosing and enduring symptom control.

   
   

Applications

Desloratadine is widely used in the management of chronic idiopathic urticaria, perennial allergic rhinitis, and other histamine-mediated allergic conditions. Additionally, it has been shown to provide relief in cold urticaria symptoms.

Packaging & Delivery

Standard packaging is 25 kg net per fiber drum. Orders exceeding 50 kg are eligible for air freight; shipments over 100 kg may be routed via sea freight for cost-effective global delivery.

FAQ

1. Can I Request a Free Sample?
   
   Absolutely. Extract Makers provides complimentary samples of Desloratadine powder upon request. Please note that the transportation costs are to be borne by the recipient.

   
   

2. What Payment Methods Are Accepted?
   
   We support various payment options, including T/T (telegraphic transfer), credit card, Western Union, PayPal, and other secure digital payment platforms.

   
   

3. How Does Extract Makers Ensure Product Quality?
   
   With over a decade of specialized experience in active pharmaceutical ingredients (APIs), we follow a rigorous and mature quality assurance framework. All batches undergo final inspection prior to shipment to guarantee consistency, purity, and compliance.

   
   

4. Do You Offer Custom OEM Services?
   
   Yes, we welcome OEM orders. Simply share your specifications and requirements, and our team will respond with a competitive quote and swift sample production.

   
   

5. How Can I Reach You?
   
   You may get in touch via email, Skype, WhatsApp, or by placing a direct phone call. All contact details are clearly listed on our website.

   
   

Extract Makers specializes in premium-grade pharmaceutical intermediates and active ingredients for the global healthcare market. Should you have any inquiries or require further technical data on Desloratadine powder, please feel free to email us directly at [email protected].

Sarah