Overview of Lorafast
Lorafast is a widely recognized trade name for a medication whose active ingredient is Desloratadine, belonging to the second-generation antihistamine class. The identity of this drug is rooted in its role as a highly selective agent used to manage allergic responses.
| Property | Description |
|---|---|
| Active ingredient | Desloratadine |
| Form | Tablet, oral solution, syrup |
| Pharmacological class | Selective peripheral H1-receptor antagonist |
| Common use | General relief from allergic symptoms |
| Origin | Synthetic derivative, active metabolite of Loratadine |
Lorafast: Definition and Identity
The core component of Lorafast is Desloratadine, a compound formally classified as a long-acting tricyclic Histamine H1-receptor antagonist. It is a synthetic derivative and, notably, is the primary active metabolite of Loratadine, the precursor drug. This pharmacological profile confirms its categorization within the modern second-generation class of antihistamines. Its high degree of specificity makes Desloratadine a selective peripheral H1-receptor antagonist, focusing its action outside the central nervous system. The medication is often available in a liquid syrup form, which facilitates oral administration, making it a suitable option for patient groups who have difficulty swallowing tablets.
Pharmacological Class and Purpose
The general purpose of Lorafast is to provide symptomatic relief by exhibiting antiallergic properties through the precise blocking of histamine activity. The medication functions as an inverse agonist at the H1 receptor, interfering with the mechanism by which histamine triggers the allergic cascade. Desloratadine provides relief from symptoms commonly associated with allergy, helping to stabilize the body's response to allergens.
Crucially, the medication is categorized as non-sedating because it is formulated to avoid significant entry to the central nervous system, ensuring that its antiallergic effect is achieved without commonly impairing alertness or cognitive function.
Composition and Available Forms
Lorafast is a single active ingredient product, supplied for the oral route of administration in various common dosage forms. These forms typically include the tablet, oral solution, and syrup formulations, allowing for straightforward administration by swallowing. In the liquid presentations, such as the syrup or oral solution, the active ingredient Desloratadine is carried within an aqueous vehicle alongside excipients. This makes the drug a chemically defined, single-action therapeutic agent. As a differentiated brand product, Lorafast provides a consistent, standardized delivery system for Desloratadine.
Regulatory References

