An interesting site spotted by Ben (NHS eLibraries blog) – LactMed. Its a site dedicated to drugs to which might have an effect of drugs taken during lactation. I’m sure it’s very useful although one search for simvastatin returned a record whose first sentence was “No relevant published information exists on the use of lovastatin during breastfeeding

A UK related site is the UKMI (UK Medicines Information) site Drugs in lactation