Dobutamine is predominantly a β 1 -adrenergic agonist , with weak β 2 activity, and α 1 selective activity, although it is used clinically in cases of cardiogenic shock for its β 1 inotropic effect in increasing heart contractility and cardiac output. Dobutamine is administered as a racemic mixture consisting of both (+) and (−) isomers ; the (+) isomer is a potent β 1 agonist and α 1 antagonist, while the (−) isomer is an α 1 agonist.  The administration of the racemate results in the overall β 1 agonism responsible for its activity. (+)-Dobutamine also has mild β 2 agonist activity, which makes it useful as a vasodilator. 
The Bitter Orange itself (the parent plant) has been linked to increased systolic and diastolic blood pressure.  While a common patented blend of P-synephrine known as Xenadrine EFX (containing just mg synephrine) has been linked to an increase in blood pressure, another patented blend, Advantra-Z (which contains a significantly higher dose of synephrine at mg along with active bioflavonoids such as naringen and hesperidin ) has not. Both appear to increase heart rate from baseline though ( BPM and BPM, respectively). 
Anabolic steroids are synthetic derivatives of testosterone . Certain clinical effects and adverse reactions demonstrate the androgenic properties of this class of drugs. Complete dissociation of anabolic and androgenic effects has not been achieved. The actions of anabolic steroids are therefore similar to those of male sex hormones with the possibility of causing serious disturbances of growth and sexual development if given to young children. Anabolic steroids suppress the gonadotropic functions of the pituitary and may exert a direct effect upon the testes .