Breast Feeding and Medication
As a general rule, a drug that is nontoxic for you is nontoxic for Lucy too. Many medications carry a warning label, not because they are known to be detrimental but because drug companies simply haven’t bothered testing the drugs’ safety in conjunction with nursing.
Nursing and Anesthesia
The local anesthesia you get at the dentist presents no danger. Anything more complicated would be administered by an anesthesiologist, who would take your condition into account.
Almost all over-the-counter medications such as painkillers and cold remedies are safe while breast feeding, when used in recommended doses.
Most antibiotics are safe while breast feeding, especially those that are prescribed for breast infections.
Antidepressants have not been formally endorsed as safe for breast-feeding mothers, but I have seen many women who took small doses of Prozac or other antidepressants for postpartum depression while nursing, and their babies suffered no consequences. The problem is not simple. Often, the thought of discontinuing nursing is just too much, and it induces a sense of failure and worsens the depression. On the other hand, mothers who already have a tendency to depression will turn even bluer with the postpartum letdown and really need some help to get over the hump. When in doubt, discuss the matter with your doctor [See: Postpartum Letdown].