Levamlodipine besylate ((S)-Amlodipine Besylate (103129-82-4(free base))) , also known as S-amlodipine, is a pharmacologically active enantiomer of amlodipine, an antihypertensive and anti-anginal medication. Levamlodipine besylate belongs to the dihydropyridine group of calcium channel blockers. The names S-amlodipine and levamlodipine may be used interchangeably as both substances are the same, however, with differing nomenclature. As a racemic mixture, amlodipine contains (R) and (S)-amlodipine isomers, but only (S)-amlodipine as the active moiety possesses therapeutic activity.

Ca2+ channel:

Amlodipine是一种钙通道阻滞剂，用于治疗心绞痛和高血压。作为一种外消旋混合物，amlodipine包含(R)-amlodipine和(S)-amlodipine异构体，但只有具有治疗活性的(S)-amlodipine是活性成分。