(R)-Propranolol hydrochloride 是抗肾上腺素受体 (β-adrenoceptor) 拮抗剂普萘洛尔 (HY-B0573) 的活性较低的对映体。Propranolol 是一种非选择性的 β-adrenergic receptor (βAR) 拮抗剂，对 β₁AR 和 β₂AR 具有高亲和力，K_i 值分别为 1.8 nM 和 0.8 nM。

(R)-Propranolol hydrochloride is a less active enantiomer of the β-adrenoceptor antagonist propranolol (HY-B0573). Propranolol is a nonselective β-adrenergic receptor (βAR) antagonist, has high affinity for the β 1 AR and β 2 AR with K i values of 1.8 nM and 0.8 nM, respectively.

Solid

Both isomers of propranolol are capable of preventing adrenaline-induced cardiac arrhythmias in cats anaesthetized with halothane, but the mean dose of (-)-propranolol is 0.09 mg/kg whereas that of (+)-propranolol is 4.2 mg/kg.
Both isomers of propranolol are capable of reversing ventricular tachycardia caused by ouabain in anaesthetized cats and dogs. The dose of (-)-propranolol is significantly smaller than that of (+)-propranolol ((R)-Propranolol) in both species.
(R)-Propranolol hydrochloride (10 mg/kg) has no antagonistic activity in rats, the cardiac responses to isoprenaline of rat can be blocked by probably much less than 1/100th of that of the (-) isomer in this preparation.
has not independently confirmed the accuracy of these methods. They are for reference only.

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moistur In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

[1]. A M Barrett,et al. The biological properties of the optical isomers of propranolol and their effects on cardiac arrhythmias. Br J Pharmacol

In Vitro: DMSO : 250 mg/mL (845.17 mM; Need ultrasonic)H₂O : 7.14 mg/mL (24.14 mM; ultrasonic and warming and heat to 60°C)配制储备液