Description
Propafenone is a class Ic anti-arrhythmic compound that inhibits β-adrenergic receptors, slows Na+ and Ca2+ influx, and decreases overall cellular excitability. Propafenone inhibits Kv1.4 K+ channels and human cardiac two pore-domain (K2P2) K+ channels. Additionally, propafenone inhibits expression of tyrosinase, TRP-1, and TRP-2 and decreases production of cAMP, suppressing melanogenesis in vitro.
References
Schmidt C, Wiedmann F, Schweizer PA, et al. Class I antiarrhythmic drugs inhibit human cardiac two-pore-domain K(+) (K2P2) channels. Eur J Pharmacol. 2013 Dec 5;721(1-3):237-48. PMID: 24070813.
Huh S, Jung E, Lee J, et al. Mechanisms of melanogenesis inhibition by propafenone. Arch Dermatol Res. 2010 Sep;302(7):561-5. PMID: 20549222.
Tian L, Jiang X, Rasmusson R, et al. Effect of propafenone on Kv1.4 inactivation. J Physiol Biochem. 2006 Dec;62(4):263-70. PMID: 17615952.