Introduction to Levocabastine Hydrochloride

Levocabastine Hydrochloride, with the CAS number 79547-78-7, is a highly selective histamine H1-receptor antagonist. It is commonly used in the treatment of allergic conjunctivitis and rhinitis, providing rapid and long-lasting relief from symptoms such as itching, redness, and nasal congestion. This article delves into the chemical properties, applications, and safety considerations of Levocabastine Hydrochloride, offering a comprehensive overview for those interested in its use and potential.

Chemical Properties and Structure

Levocabastine Hydrochloride is a white powder that is insoluble in water at neutral pH but becomes more soluble at higher pH levels. Its chemical name is (-)-[3S-[1(cis),3 alpha, 4 beta]]-1-[4-cyano-4-(4-fluorophenyl)cyclohexyl]-3-methyl-4-phenyl-4-piperidine-carboxylic acid monohydrochloride. The molecular formula is C26H29FN2O2.HCl, with a molecular weight of 456.99. This compound is known for its high selectivity towards histamine H1-receptors, which contributes to its effectiveness in treating allergic conditions.

Applications in Medicine

Levocabastine Hydrochloride is primarily used in the form of eye drops and nasal sprays to alleviate symptoms of allergic conjunctivitis and rhinitis. The eye drops are effective in relieving watery, itchy, and swollen eyelids, as well as red eyes caused by allergies to various substances such as grass, pollen, and dust. Similarly, the nasal spray helps in reducing sneezing, runny nose, and nasal irritation. The rapid onset and sustained duration of action make Levocabastine Hydrochloride a preferred choice for many patients seeking relief from allergic symptoms.

Pharmacokinetics and Bioavailability

After topical application, Levocabastine Hydrochloride is absorbed incompletely, with systemic bioavailability ranging from 60 to 80% for the nasal spray and 30 to 60% for the eye drops. Despite the low absorption rate, the small amount applied ensures that plasma concentrations remain very low, minimizing systemic side effects. The drug undergoes minimal hepatic metabolism and is predominantly cleared by the kidneys, with about 70% of the parent drug excreted unchanged in the urine.

Safety and Side Effects

Levocabastine Hydrochloride is generally well-tolerated, with common side effects including slight irritation to the eyes or nose, such as burning, redness, or dryness. More severe side effects, such as allergic reactions, are rare but should be monitored. Patients with renal impairment should use the nasal spray cautiously, as the drug's half-life can be significantly prolonged in such cases. It is also advised not to use Levocabastine Hydrochloride during pregnancy or while breastfeeding due to limited data on its safety in these populations.

Manufacturing and Supply

NINGBO INNO PHARMCHEM CO.,LTD. is a leading Levocabastine Hydrochloride manufacturer in China, specializing in the production and supply of this potent antihistamine. Our commitment to quality and innovation ensures that we provide high-purity Levocabastine Hydrochloride to meet the needs of pharmaceutical companies and research institutions worldwide. As a trusted Levocabastine Hydrochloride supplier in China, we adhere to stringent quality control measures to guarantee the efficacy and safety of our products.

Conclusion

Levocabastine Hydrochloride (CAS: 79547-78-7) is a valuable tool in the management of allergic conditions, offering rapid and sustained relief from symptoms. Its chemical properties, pharmacokinetics, and safety profile make it a preferred choice for many patients. As a leading Levocabastine Hydrochloride manufacturer and supplier in China, NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to providing high-quality products to support the health and well-being of individuals worldwide.

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