Dyclonine HCl is a hydrochloride salt form of dyclonine which is an oral anaesthetic, reversibly binds to activated sodium channels on the neuronal membrane, thereby decreasing the neuronal membrane’s permeability to sodium ions, leading to an increased threshold for excitation.
Phentolamine Mesylate is a reversible and nonselective alpha-adrenergic receptor antagonist, used for the prevention or control of hypertensive episodes.
Urapidil HCl is a hydrochloride salt form of urapidil which is α1-adrenoceptor antagonist and 5-HT1A receptor agonist with pIC50 of 6.13 and 6.4 respectively.