Sotalol HCl (Betapace; Betapace AF; MJ-1999; MJ1999; Sotacor; Darob), the hydrochloride salt of Sotalol, is a competitive and non-selective β-adrenergic receptor antagonist used to treat and prevent abnormal heart rhythms.

Carvedilol (BM-14190, SKF-105517; Coreg; Dilatrend; Carvedilolum; Eucardic; Kredex; Querto; Coropres) is a non-selective beta blocker/alpha-1 blocker with antihypertensive effects.

Guanabenz Acetate (BR-750; Wy-8678; BR 750; Wy 8678; EIPA), the acetate salt of Guanabenz, is an agonist of α2a/b/c-adrenergic receptors with antihypertensive effects.

Synephrine HCl (Sympatol; oxedrine), the hydrochloride salt of synephrine which is a naturally occuring protoalkaloid extracted from bitter orange and other citrus species, is commonly used for weight loss.

Piperoxan hydrochloride(also known as Piperoxan HCl, or benodaine) is a novel, selective and potent α2 adrenoceptor antagonist. It was also the first antihistamine.

Acebutolol HCl (Neptal; Prent; Sectral; Dl-Acebutolol), the hydrochloride salt of acebutolol, is a potent antagonist of β-adrenergic receptor with antihypertensive effects.

Boldine is a naturally occurring alkaloid of the aporphine class isolated from the boldo tree and in Lindera aggregata.

Midodrine hydrochloride (Amatine; Orvaten; Midodrine HCl; Pro-Amatine), the hydrochloride salt of midodrine which is a phenylalkanolamine derivative.

Olodaterol HCl, the hydrochloride salt of Olodaterol (BI-1744; BI1744; STRIVERDI RESPIMAT), is a ultra-long acting β-adrenergic receptor agonist approved in 2014 as an inhalation for the treatment of patients with chronic obstructive pulmonary disease (COPD).

Metoprolol (Lanoc; Selopral; Ritmolol; Lopressor; Metomerck; Metop; Toprol) is a potent β1 adrenergic receptor blocker and an approved drug for the treatment of high blood pressure and chest pain.