Slaughter and May and Freshfields Bruckhaus Deringer are among four firms to have taken roles on the demerger of Reckitt Benckiser’s pharmaceutical business.

Slaughters corporate partners Rebecca Cousin and Jeff Twentyman are leading for Reckitt and Indivior, the company’s addiction control-focused pharma division, which will be demerged from the FTSE 100 group once shareholder approval is granted in December.