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Australia’s treasurer stops Cosette Pharmaceuticals’ $387.2m takeover bid of Mayne Pharma

Small pile of several blister packs of oral contraceptive pills
Photo: Charles Milligan/Hulton Archive/Getty Images

The ups and downs of the proposed deal demonstrate the evolving landscape of compliance in the context of geopolitical tensions.

The Australian government is moving to block a $387.2m takeover deal of Mayne Pharma by US company Cosette Pharmaceuticals, citing a “national security” need to protect “critical medical supply chains.”

Mayne Pharma’s business, which focuses on therapeutic areas like women’s health, dermatology, pain, and infectious diseases, is mainly in the

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