Is dorzolamide/timolol safe for women who are pregnant or breastfeeding?

No: The answer is not a clear cut yes/no. The fda has assigned a category c rating which means there were some negative effects when given to animals at extremely high doses but no clear answer in humans. You should talk to your ob, eye doctor and pediatrician.

Not safe: It is category c meaning that animal studies have shown adverse effects on fetuses, but no human studies have been done. Even less is known about it's effect on lactation. Avoid it during pregnancy and breast-feeding if possible.