Loratadine

Loratadine 속성

Loratadine MSDS

Ethyl 4-(8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-1-piperidinecarboxylate

Loratadine C화학적 특성, 용도, 생산

개요

Loratadine is a non-sedating antihistamine indicated for use in allergic rhinitis and chronic urticaria. Its major advantage over other non-sedating antihistamines such as astemizole and terfenadine is its very fast onset of action. Loratadine is claimed not to cross the blood-brain barrier.

화학적 성질

White Crystalline Solid

용도

Loratadine, is used as a peripheral histamine H1 receptor agonist. It is also used as an orally active antiallergic agent. It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and Dyestuff.

Indications

Loratadine (Claritin) is a long-acting, potent peripheral H1 blocker with minimal sedative effects. It does not appear to have the same adverse cardiac effects as the other nonsedating H1 antihistamines. It is indicated for allergic rhinitis and chronic urticaria.

일반 설명

Loratadine, 4-(8-chloro-5,6-dihydro-11Hbenzo[5,6]-cyclohepta[1,2-b]pyridin-l 1-ylidene-1-carboxylic acid ethyl ester, is a white to off-white powder insoluble in water but very soluble in acetone, alcohols, and chloroform. Loratadine is structurally related to the antihistamines azatadine and cyproheptadine, and to some tricyclic antidepressants. It differs from azatadine, in that a neutral carbamate group has replaced the basic tertiary amino moiety, and a phenyl ring has been substituted with a chlorine atom. Loratadine is a selective peripheral H1-antihistamine with a receptor-binding profile like that of the other members of this series, except that it has more antiserotonergic activity. Thus, it produces no substantial CNS or autonomic side effects or cardiac toxicity.
Loratadine displays potency comparable with that of astemizole and greater than that of terfenadine. Loratadine is indicated for the relief of nasal and nonnasal symptoms of seasonal allergic rhinitis. In the presence of a CYP3A4 inhibitor ketoconazole, loratadine is metabolized to descarboethoxyloratadine predominantly by CYP2D6.

생물학적 활성

Peripheral histamine H 1 receptor antagonist (K i = 35 nM); devoid of central effects. Orally active antiallergic agent.

Clinical Use

Loratadine is related to the first-generation tricyclic antihistamines and to antidepressants. It is nonsedating, and neither it nor its major metabolite, desloratadine (descarboethoxyloratadine), is associated with the potentially cardiotoxic effects reported for terfenadine and astemizole. On chronic dosing, the AUC (plasma concentration–time curve) for the metabolite is greater than that for the parent drug, and its half-life is longer.

Loratadine 준비 용품 및 원자재

원자재

준비 용품

Loratadine 공급 업체

공급자	전화	이메일	국가	제품 수	이점
airuikechemical co., ltd.	+undefined86-15315557071	sales02@airuikechemical.com	China	994	58
APOLLO HEALTHCARE RESOURCES	+6596580999	sales@apollo-healthcare.com.sg	Singapore	400	58
Hebei Zhanyao Biotechnology Co. Ltd	15369953316 +8615369953316	admin@zhanyaobio.com	China	2136	58
Shenzhen Monkono Technology Co.,Ltd	+86-17063441314	sansbiotech@outlook.com	China	677	58
Chengdu Aupone Pharmaceutical Co.Ltd.	+86-28-+86-28-87843998-6060-6060 +8618631098571	lijiaqi@aupone.com	China	43	58
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12456	58
Changzhou Rokechem Technology Co., Ltd.	18758118018	sales001@rokechem.com	China	255	58
Henan Bao Enluo International TradeCo.，LTD	+86-17331933971 +86-17331933971	deasea125996@gmail.com	China	2503	58
Sigma Audley	+86-18336680971 +86-18126314766	nova@sh-teruiop.com	China	525	58
hebei hongtan Biotechnology Co., Ltd	+86-86-1913198-3935 +8617331935328	sales03@chemcn.cn	China	951	58

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