Quinidine
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| Post Date: | Jan 09,2018 |
| Expiry Date: | Jul 08,2018 |
| Detailed Description: |
Cas No. :56-54-2
Quantity: mass in stockKilograms Specs:white powder Price:negotiable USD Kilograms Payment Method: T/T, Western Union,Moneygram and Bitcoin. Description: Quinidine is a pharmaceutical agent that acts as a class I antiarrhythmic agent (Ia) in the heart.It is a stereoisomer of quinine, originally derived from the bark of the cinchona tree. The drug causes increased action potential duration, as well as a prolonged QT interval. Medical uses Quinidine is used as a class I antiarrhythmic agent, that is, to prevent ventricular arrhythmias. It is also used to maintain sinus rhythm after cardioversion of atrial fibrillation and to treat short QT syndrome. Other uses A combination of dextromethorphan and quinidine has been shown to alleviate symptoms of easy laughing and crying (pseudobulbar affect) in patients with amyotrophic lateral sclerosis and multiple sclerosis. This drug is marketed as Nuedexta in the United States. Intravenous quinidine is also indicated for treatment of Plasmodium falciparum malaria.However, quinidine is not considered the first-line therapy for P. falciparum. The recommended treatments for P. falciparum malaria, according to the Toronto Notes 2008, are a combination of either quinine and doxycycline or atovaquone and proguanil (Malarone). Side effects Quinidine is also an inhibitor of the cytochrome P450 enzyme 2D6, and can lead to increased blood levels of lidocaine, beta blockers, opioids, and some antidepressants. Quinidine also inhibits the transport protein P-glycoprotein and so can cause some peripherally acting drugs such as loperamide to have central nervous system side effects, such as respiratory depression, if the two drugs are coadministered. Quinidine can cause thrombocytopenia, granulomatous hepatitis, myasthenia gravis, and torsades de pointes, so is not used much today. Torsades can occur after the first dose. Quinidine-induced thrombocytopenia (low platelet count) is mediated by the immune system, and may lead to thrombocytic purpura. Quinidine intoxication can lead to a collection of symptoms collectively known as cinchonism, with tinnitus (ringing in the ears) being among the most characteristic and common symptoms of this toxicity syndrome. Quinidine toxicity can also invoke episodes of Torsades de Pointes - a rapid and dangerous ventricular rhythm. |
| CAS Registry Number: | 56-54-2 |
| Synonyms: | ;Quinidine free base;(+)-Quindine;(9S)-6'-methoxycinchonan-9-ol;(9S)-6'-methoxycinchonan-1-ium-9-ol;(4beta,8alpha,9S)-9-hydroxy-6'-methoxycinchonan-1-ium;(4beta,9S)-9-hydroxy-6'-methoxycinchonan-1-ium;(8alpha,9S)-9-hydroxy-6'-methoxycinchonan-1-ium; |
| Molecular Formula: | C20H25N2O2 |
| Molecular Weight: | 325.4242 |
| Molecular Structure: | 
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| Hazard Symbols: |  Xn:Harmful; |
| Risk Codes: | R22:; |
| Safety Description: | S22:; S36:; |
| Company: | Hengyang Desen Biotechnology Co., Ltd. [ China ] |
| Contact: | ava |
| Tel: | 86-18908446905 |
| Fax: | |
| Email: | ava@ycgmp.com |
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