Date	Event	Description
8 May 2014	Amended	Minor edit made to numbers reported in Results of the search.
20 June 2013	New citation required but conclusions have not changed	Conclusions regarding topiramate essentially unchanged.
20 June 2013	New search has been performed	Searches updated on 15 January 2013. Ten new included studies added (Afshari 2012; Ashtari 2008; de Tommaso 2007; Diener 2007; Dodick 2009; Gupta 2007; Lipton 2011; Luo 2012; Silberstein 2006; Varkey 2011).
26 August 2008	Amended	Converted to new review format.
11 May 2007	New search has been performed	May 2007 (Issue 3, 2007): Electronic searches updated through December 2005 Handsearches updated through April 2006 Review revised to incorporate eight new included trials Dr WM Mulleners took over as guarantor of the review