What's the difference between Shi Huida and Luo Huoxi?

Shi Huida and Luo Huoxi are both CCB, that is, calcium channel blockers, and their components are amlodipine besylate, Shi Huida is levoamlodipine besylate, and Luo Huoxi is racemic, that is, a mixture of levoamlodipine besylate and dextroamlodipine besylate. Levamlodipine has a strong antihypertensive effect, while dextroamlodipine has a weak antihypertensive effect, but studies have shown that it can improve renal function to some extent. This is also one of the reasons why LoxoSmithKline is more expensive than Shi Huida. In addition, Luohuoxi is an imported antihypertensive drug developed by Pfizer original factory, and Shihuida is a generic drug of Jilin Shihuida Pharmaceutical. The antihypertensive effect is similar. If the patient has poor renal function or is old, it is recommended to choose imported drugs, which is better for the kidney.