This article was unintentionally published twice in this journal by the same authors. The following should be considered the version of record and used for citation purposes: “Consolacion Y. Ragasa, Kosta Fremmielle Lim, Chien-Chang Shen, and Dennis D. Raga, Hypoglycemic Potential of Triterpenes from Alstonia scholaris, Pharmaceutical Chemistry Journal, Vol. 47, No. 1, pp. 54–57, DOI 10.1007/s11094-013-0896-3.”

The duplicate, “Consolacion Y. Ragasa, Kosta Fremmielle Lim, Chien-Chang Shen, and Dennis D. Raga, Hypoglycemic Potential of Triterpenes from Alstonia scholaris, Pharmaceutical Chemistry Journal, Vol. 49, No. 1, pp. 30–33, DOI 10.1007/s11094-015-1217-9” is to be ignored.

Springer apologizes to the readers of the journal for not detecting the duplication during the publication process.