Is (R,R)-Formoterol Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use (R,R)-Formoterol? Is (R,R)-Formoterol safe for nursing mother and child? Does (R,R)-Formoterol extracts into breast milk? Does (R,R)-Formoterol has any long term or short term side effects on infants? Can (R,R)-Formoterol influence milk supply or can (R,R)-Formoterol decrease milk supply in lactating mothers?

Long-acting bronchodilator. Its high molecular weight and plasma protein binding make excretion into breast milk unlikely Terbutaline which is a related medication is excreted insignificantly in breast milk. Plasma levels after inhalation of Salmeterol which is a related drug are insignificant. Inhaled medication should of choice because a lower dose and fewer excretion into breast milk.

(R,R)-Formoterol is the -enantiomer of the long-acting beta-2 adrenergic agonist, formoterol. Although no published data exist on the use of arformoterol by inhalation during lactation, data from the related drug, terbutaline, indicate that very little is expected to be excreted into breastmilk.[1] The authors of several reviews and an expert panel agree that use of inhaled bronchodilators is acceptable during breastfeeding because of the low bioavailability and maternal serum levels after use.[2][3][4][5][6]