Pregnancy: There are no adequate data from the use of sitagliptin in pregnant women. Studies in animals have shown reproductive toxicity at high doses. The potential risk for humans is unknown. Due to lack of human data, sitagliptin should not be used during pregnancy.
Breast-feeding: It is unknown whether sitagliptin is excreted in human breast milk. Animal studies have shown excretion of sitagliptin in breast milk. Sitagliptin should not be used during breast-feeding.
Fertility: Animal data do not suggest an effect of treatment with sitagliptin on male and female fertility. Human data are lacking.