Is GW 642444 Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use GW 642444? Is GW 642444 safe for nursing mother and child? Does GW 642444 extracts into breast milk? Does GW 642444 has any long term or short term side effects on infants? Can GW 642444 influence milk supply or can GW 642444 decrease milk supply in lactating mothers?

Although no published data exist on the use of GW 642444 during lactation, data from the related drug, terbutaline, indicate that very little is expected to be excreted into breastmilk.[1] GW 642444 is available only in combination products such as Breo Ellipta and Anoro Ellipta. The authors of several reviews 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] Combination products such as Breo Ellipta and Anoro Ellipta are likely to be acceptable for similar reasons.