Overview
Atorvastatin is a synthetic lipid-lowering agent belonging to the statin class of drugs. It is widely prescribed to manage high cholesterol levels and reduce the risk of cardiovascular events such as heart attacks and strokes. Developed in the 1980s and approved by the FDA in 1996, atorvastatin has become one of the most commonly prescribed medications globally. As a selective, competitive inhibitor of HMG-CoA reductase, the rate-limiting enzyme in cholesterol biosynthesis, atorvastatin effectively lowers low-density lipoprotein (LDL) cholesterol while moderately increasing high-density lipoprotein (HDL) cholesterol. Its therapeutic benefits extend beyond lipid modification, including anti-inflammatory effects and plaque stabilization in arteries.
Physical and Chemical Properties
Atorvastatin appears as a white to off-white crystalline powder with a molecular weight of 558.64 g/mol. The compound is slightly soluble in water but dissolves well in organic solvents such as ethanol, methanol, and dimethyl sulfoxide (DMSO). Its melting point typically ranges between 170-175°C, indicating reasonable thermal stability for pharmaceutical processing. The calcium salt form (atorvastatin calcium) is commonly used in drug formulations due to its improved stability and bioavailability. The molecule contains a fluorophenyl group and a pyrrole ring, which contribute to its potent inhibitory effects on HMG-CoA reductase. These structural features also influence its pharmacokinetic properties, including plasma protein binding and tissue distribution.
Main Applications
The primary medical application of atorvastatin is in the treatment of dyslipidemia, particularly for reducing elevated LDL cholesterol levels in patients with hypercholesterolemia. It is also prescribed for secondary prevention in individuals with established cardiovascular disease to reduce the risk of recurrent events. Clinical studies have demonstrated its efficacy in slowing atherosclerosis progression and reducing cardiovascular mortality. Beyond cardiovascular indications, research suggests potential benefits in other conditions such as Alzheimer's disease, multiple sclerosis, and certain cancers, though these applications remain investigational. The drug is typically administered orally in tablet form, with dosages ranging from 10 mg to 80 mg daily, adjusted based on patient response and tolerance.
Safety and Storage
Atorvastatin requires careful handling in both industrial and laboratory settings. Personnel should wear appropriate personal protective equipment, including gloves and safety glasses, to prevent skin contact or inhalation of powder. The compound should be stored in tightly sealed containers at controlled room temperature (2-8°C), protected from light and moisture to maintain stability. From a clinical perspective, regular monitoring of liver enzymes is recommended due to the risk of hepatotoxicity. Muscle-related adverse effects, including myalgia and rare cases of rhabdomyolysis, necessitate caution, particularly when co-administered with certain other medications. Contraindications include active liver disease, pregnancy, and hypersensitivity to statins.
B2B Procurement Guide
When sourcing atorvastatin for pharmaceutical production or research purposes, buyers should prioritize suppliers with documented quality management systems and regulatory compliance. Key procurement considerations include verifying Certificate of Analysis (CoA) details such as purity (typically ≥98%), residual solvent levels, and impurity profiles. For large-scale procurement, audit supplier facilities for Good Manufacturing Practice (GMP) compliance and evaluate their track record for consistent quality. Pricing varies significantly based on order volume, with bulk purchases (kilograms or more) typically commanding lower unit costs. Lead times may range from 2-8 weeks depending on supplier inventory and customization requirements. Consider establishing long-term contracts with reliable suppliers to ensure stable supply chains.
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