Secretion of this substance is intentionally induced by dom·peri·done but is a common side effect of taking antipsychotics like ris·peri·done. Oligo·saccharides named for this substance encourage the colonization of the gut microbiome by bifido·bacteria. This substance is produced by alveolar cells found in lobules. IgA (“I-G-A”) is concentrated in a yellowish, (20[1])slightly laxative form of this substance called (*) colostrum. The pituitary hormone that activates production of this substance competes with dopamine. Antibodies transferred through this substance greatly reduce the risk of RSV and SIDS (“sids”). An ejection reflex mediated by oxytocin releases this substance during suckling. For 10 points, name this substance secreted by the mammary glands during lactation. ■END■