What is Primodos and why were 100 UK families seeking compensation?

Concerns about birth defects first raised in 1960s but evidence for causal link to pregnancy test remains contentious

Families lose bid for compensation over Primodos

The high court in London has struck out a bid by families who believe their babies were harmed to sue the pharmaceutical company behind the hormone-based pregnancy test Primodos. Scientists first published concerns about birth defects in the 1960s, a decade before the tests were withdrawn, but the evidence for a causal link remains contentious.