Ropivacaine

Ropivacain is a potent?sodium channel?blocker. Ropivacain blocks impulse conduction via reversible inhibition of?sodium ion influx?in nerve fibrese^[1][2]. Ropivacaine is also an inhibitor of K_2P (two-pore domain potassium channel) TREK-1 with an IC₅₀ of 402.7 μM in COS-7 cell's membrane^[3]. Ropivacaine is used for the research of neuropathic pain?management^[1]. IC50 & Target: IC50: sodium ion influx^[1]
IC50: 402.7 μM (TREK-1 in COS-7 cell's membrane)^[2] In Vivo: Epidural administration of Ropivacaine effectively blocks neuropathic pain (both mechanical allodynia and heat hyperalgesia) without induction of analgesic tolerance and significantly delays the development of neuropathic pain produced by peripheral nerve injury^[1].
Ropivacaine inhibits pressure-induced increases in filtration coefficient (Kf) without affecting pulmonary artery pressure (Ppa), pulmonary capillary pressures (Ppc), and zonal characteristics (ZC)^[2].
Ropivacaine prevents pressure-induced lung edema and associated hyperpermeability as evidence by maintaining PaO2, lung wet-to-dry ratio and plasma volume in levels similar to sham rats^[2].
Ropivacaine inhibits pressure-induced NO production as evidenced by decreased lung nitro-tyrosine content when compared to hypertensive lungs^[2].