Mechanism of Action
Desloratadine is a long-acting tricyclic histamine antagonist with selective H1-receptor histamine antagonist activity. Receptor binding data indicates that at a concentration of 2-3 ng/mL (7 nanomolar), desloratadine shows significant interaction with the human histamine H1-receptor. Desloratadine inhibited histamine release from human mast cells in vitro. Results of a radiolabeled tissue distribution study in rats and a radioligand H1-receptor binding study in guinea pigs showed that desloratadine did not readily cross the blood brain barrier. The clinical significance of this finding is unknown.
CLARINEX is an H1-receptor antagonist indicated for:
- Seasonal Allergic Rhinitis: relief of nasal and non-nasal symptoms in patients 2 years of age and older.
- Perennial Allergic Rhinitis: relief of nasal and non-nasal symptoms in patients 6 months of age and older.
- Chronic Idiopathic Urticaria: symptomatic relief of pruritus, reduction in the number of hives, and size of hives in patients 6 months of age and older.
Dr. Reddy's Expertise
Headquartered in Hyderabad, India, Dr. Reddy's Laboratories is one of the leading Active Pharmaceutical Ingredients (API) manufacturers and suppliers globally for Desloratadine API. Dr. Reddy's API business is a preferred partner to pharma companies across the US, Europe, Brazil, Latin America, Japan, China, Korea, Middle East and other emerging markets.
Dr. Reddy's API business thrives on the deep technical strengths established over the last 30+ years in the development and manufacture of complex APIs such as steroids, peptides, complex long chain molecules and highly potent APIs (HPAPIs / oncology drugs). This expertise is complemented by our prowess in intellectual property and regulatory affairs which helps us consistently meet and exceed regulatory standards. Dr. Reddy's Desloratadine API is the outcome of the extensive expertise in R&D, IP, and Regulatory.
A key component in helping our customers be first to market is a responsive supply chain. We achieve this by making sure that all our facilities are operating efficiently and to the latest standards of quality, safety, and productivity. A strong interconnect between business and factories allows for a quick reaction to dynamic market changes, so that we can avert shortages and meet sudden surges in demand.
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All product information, including that with regard to active pharmaceutical ingredients (API), the indication, and possible mechanism(s) of action, is based on publicly available product label.