Is UNII-21HMQ851IS Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use UNII-21HMQ851IS? Is UNII-21HMQ851IS safe for nursing mother and child? Does UNII-21HMQ851IS extracts into breast milk? Does UNII-21HMQ851IS has any long term or short term side effects on infants? Can UNII-21HMQ851IS influence milk supply or can UNII-21HMQ851IS decrease milk supply in lactating mothers?

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UNII-21HMQ851IS is not approved for marketing in the United States by the U.S. Food and Drug Administration, but is available in other countries. Limited information indicates that maternal oral doses of up to 4 mg daily or depot injections of 40 mg every 2 weeks produce low levels in milk and breastfed infants' serum, and cause no adverse developmental consequences. Until more data are available, UNII-21HMQ851IS should be used with careful monitoring during breastfeeding.

A woman took UNII-21HMQ851IS 1 mg and nortriptyline 100 mg daily during pregnancy and UNII-21HMQ851IS 4 mg and nortriptyline 125 mg daily immediately postpartum. She exclusively breastfed her infant. Over a 4-month period, the infant showed no signs of adverse drug effects and had normal motor development with a maternal dosage of UNII-21HMQ851IS 2 mg daily and nortriptyline 75 mg daily.[2]

UNII-21HMQ851IS can increase serum prolactin[3][4][5] and has caused galactorrrhea.[6] The prolactin level in a mother with established lactation may not affect her ability to breastfeed.