Overview
Ramipril is a long-acting angiotensin-converting enzyme (ACE) inhibitor, first approved for medical use in 1989. It is commonly prescribed for hypertension, congestive heart failure, and to reduce cardiovascular mortality after myocardial infarction. The drug is metabolized into its active form, ramiprilat, which inhibits ACE, preventing the conversion of angiotensin I to angiotensin II. This mechanism reduces vasoconstriction and aldosterone secretion, leading to lowered blood pressure and reduced cardiac workload.
Physical and Chemical Properties
Ramipril is a white to off-white crystalline powder with a molecular weight of 416.51 g/mol. It is soluble in water, methanol, and ethanol, making it suitable for oral formulations like tablets and capsules. The compound exhibits stability under normal storage conditions but may degrade when exposed to excessive heat, light, or moisture. Its melting point ranges between 105-110°C, and it does not have a defined boiling point due to decomposition before evaporation.
Main Applications
Ramipril is primarily used to manage hypertension (high blood pressure) and heart failure. It is also prescribed to improve survival rates in patients who have suffered a heart attack, as it reduces the strain on the heart and blood vessels. Additionally, ramipril is used in diabetic patients to protect kidney function by reducing proteinuria. Its vasodilatory effects make it valuable in preventing strokes and other cardiovascular events in high-risk patients.
Safety and Storage
Ramipril should be stored in a cool, dry place below 25°C, away from direct light and moisture to maintain stability. Improper storage can lead to degradation, reducing efficacy. Common side effects include dizziness, cough, and hyperkalemia. Severe reactions like angioedema are rare but require immediate medical attention. Ramipril is contraindicated in pregnancy due to risks of fetal harm, and patients with renal impairment require dosage adjustments.
B2B Procurement Guide
When procuring ramipril in bulk, buyers should verify the supplier's compliance with pharmacopeial standards such as USP or EP. Certificates of Analysis (CoA) should confirm purity, impurity levels, and stability. Prices vary based on quantity and purity, typically ranging from $50-$200 per kilogram. Long-term contracts with certified manufacturers are recommended to ensure consistent quality. Buyers should also assess logistical factors like storage and transportation conditions to prevent degradation.