I was about to make that point about the abortion pills, which were a sleazy commercial racket. Mostly they were sugar pills with added bitters. They might invoke trad herbal ingredients (tansy, apiol, etc) in the name but wouldn't have contained effective doses - and just as well, as the line between 'effective' and 'lethally toxic' was very fine.

For some contemporary literary accounts of women seeking and getting abortion, and biographically attested instances of actual women of the period, see here.

Should also mention, there were orally circulated (among working women mostly) folk remedies, some of which were effective (diacholon ? sp ? - lead) but dangerous.