Description_x000D_ General description_x000D_ Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards. Amlodipine besylate is a calcium channel blocker, which inhibits the trans membrane influx of calcium ions into vascular smooth muscles and cardiac muscle. It belongs to the dihydropyridine family. It is used in combination with atorvastatin calcium to treat vasospastic angina, chronic stable angina, hypertension, in elevated serum triglyceride levels, primary dysbetalipoproteinemia._x000D_ Application_x000D_ Amlodipine besylate may be used as a pharmaceutical reference standard for the quantification of the analyte in pharmaceutical formulations using different chromatography techniques and spectrophotometric technique._x000D_ These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements._x000D_ Biochem/physiol Actions_x000D_ Amlodipine is an L-type calcium channel blocker. Amlodipine belongs to a class of cardiovascular drugs, which act at the voltage gated calcium channel of the CaV1, or L-type, class. Amlodipine also has antihypertensive and antianginal effects. Its activity resides mainly in the (-)-isomer. Amlodipine inhibits growth of human epidermoid carcinoma A431 cells and has antireproductive effects in male rats._x000D_ Analysis Note_x000D_ These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available._x000D_ Other Notes_x000D_ This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis._x000D_ Footnote_x000D_ To see an example of a Certificate of Analysis for this material enter LRAC0717 in the slot below. This is an example certificate only and may not be the lot that you receive.