The lack of a clear understanding of how the drug worked may have contributed to this unfortunate outcome. Dimebon has been sold over the counter in Russia since 1983 as an antihistamine.

Friendship based upon clear understanding must and will endure always.” The President and the Ambassador bowed, and J. Butler Wright ushered the French out, much as he had ushered them in.

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. Barclays’ former chief executive Jes Staley has argued the bank had a “clear understanding” of the ...