A replacement has not yet been found.
The concerts are scheduled to feature Wagner's Siegfried Idyll, Schumann's Symphony No. 4, and Brahms' Piano Concerto No. 2, with Garrick Ohlsson as soloist.
Earlier in the week, the New York Philharmonic announced that the 75-year-old Dohnšnyi and would not be able to conduct three concerts in New York this weekend. Semyon Bychkov, chief conductor of the WDR Symphony Orchestra Cologne, will replace him.
A spokesperson for Dohnšnyi said that the conductor was being treated for kidney stones, and that he expects to appear for three weeks of concerts with the Boston Symphony beginning April 21.