Weil Gotshal & Manges and Skadden Arps Slate Meagher & Flom have taken lead roles on Sanofi-Aventis’s $1.9bn (£1.2bn) purchase of consumer care products company Chattem, reports The Am Law Daily.

The acquisition, set to create the fifth-largest consumer products company in the world, will give the French pharmaceutical company a toehold in the over-the-counter drugs market.