What are some pill names for breast enlargement?

They Don't Exist: Any pill that says it will enlarge your breast will either not work; or you might see some mild increase but you've just increased your risk of breast cancer. Just say no.

Not fully understood: The action of many of these products are not fully understood. Many oral contraceptives, particularly those with higher doses of estrogen, in estrogen sensitive individuals, may see an increase on breast size but also an increase in clotting.