I am unaware of any medications or other interventions, with the exception of surgical implants, that enlarge the size of the breasts dependably. Some women find that with weight gain, use of hormone types of birth control, or with pregnancy the breasts enlarge, but that may or may not be a temporary situation. Again, with the exception of surgical placement of implants, I don't know of anything that reliably works to change the size or shape of the breasts. I would encourage you, if you are having concerns about the size of your breasts, to make an appointment and discuss this with a provider, because it may be the easiest thing to change is our attitude about the size of our breasts versus the actual size of our breasts. Please understand that the function of the human breast (mammary gland), which is a prerequisite of being in the group of animals known as mammals, who feed our young with milk produced in the breast. The function of the mammary glands is unaffected by the size of the breasts. However, again, if you have questions or concerns, please make an appointment with a provider and we can discuss this further.