Bromocriptine-induced implantation during lactation in the rat.

When lactating rats were mated at the post-partum oestrus, treated with a single dose of bromocriptine (2 mg/kg body wt) 7 days later, and killed on Day 11, implantation was induced in 8/24 animals. When the litter was removed at the time of bromocriptine treatment 5/9 rats had implantations compared with 9/10 after litter removal alone.