Concentration Capsules

"We regret to say that you have failed your Grade 2 W.O.M.B.A.T. We would advise a little further study of the textbooks [...] and a course of Concentration Capsules."

— The WEA to a failed examinee

Concentration Capsules were magical pharmaceutical drugs used to enhance one's concentration skills. The Wizarding Examinations Authority advised examinees who had difficulty in the Grade 2 Wizards' Ordinary Magic and Basic Aptitude Test to take some of these.

Appearances

• J. K. Rowling's official site (First mentioned)