ADRA1 x β1-adrenergic receptor x ADRA2 x β3-adrenergic receptor x β2-adrenergic receptor x H1 receptor
Adrenergic receptor alpha-1 x Beta-1 adrenergic receptor x Adrenergic receptors alpha-2 x Beta-3 adrenergic receptor x Beta-2 adrenergic receptor x Histamine H1 receptor