Medication while breast-feeeding???

Hi.

To start, I'm not breast-feeding, or even pregnant, but I will be at some point and need to plan this issue as I take a lot of medication that may or may not be OK with pregnancy and breast-feeding.

Some of my medications I'll need to take while BF, such as my asthma meds, because the benefits outweigh the costs. However, I'm wondering if other mamas who need occasional meds keep frozen expressed milk for such times. For example, I get crippling headaches from time to time which require something much stronger than Tylenol. Like Tylenol with Codeine Without such meds, I'm a crumpled up rag lying in the bed (for days) and will be of no use to my children. I'm thinking that if I made sure to keep a supply of expressed milk (while not on meds) in the freezer, I could use this during the time I was on the meds and while it was leaving my system. (I'd research how many hours it takes to be absorbed and gotten rid of.)

Does anyone else do this? How does your baby take the bottle as opposed to the breast? Are there some nipples that are easier for normally-BF babies to drink from?

Thanks!