Is GW642444x Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use GW642444x? Is GW642444x safe for nursing mother and child? Does GW642444x extracts into breast milk? Does GW642444x has any long term or short term side effects on infants? Can GW642444x influence milk supply or can GW642444x decrease milk supply in lactating mothers?

Although no published data exist on the use of GW642444x during lactation, data from the related drug, terbutaline, indicate that very little is expected to be excreted into breastmilk.[1] GW642444x 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.