Controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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2001
Baycol safety crisis
Bayer withdrew Baycol after reports of rhabdomyolysis and associated kidney failure, including deaths, led to regulatory and public scrutiny.
1980
Contaminated hemophilia products
Cutter, a Bayer subsidiary, was among manufacturers whose blood-clotting products infected hemophiliacs with HIV and other pathogens during the early AIDS era. Later disclosures concerning distribution of untreated products outside the United States intensified criticism.
1960
Primodos pregnancy-test controversy
The hormone-based pregnancy test Primodos was blamed by campaigners for birth defects and was withdrawn in the 1970s. Later official reviews found the evidence inconclusive.
1939
IG Farben forced labor and wartime crimes
Bayer's predecessor within IG Farben was involved in the Nazi war economy, forced labor, concentration-camp production, and medical experimentation. Allied authorities dismantled IG Farben after the war.