infections
Polypeptides
Use of Polypeptides During Pregnancy and Breastfeeding
 is applied topically and little of the drug is Drug Absorption into the bloodstream. However, its safety has not been established. The same is true for , no harmful effects on the fetus have been observed in animal studies, but no well-designed studies have been done in pregnant women. With colistin, harmful effects on the fetus have been observed in animal studies. (See also Safety of Medications During Pregnancy .) or colistin by injection during breastfeeding is safe is unknown. (See also Medication and Substance Use During Breastfeeding .) 