Another of the frequently asked questions is about nausea and breastfeeding. It may be during a gastro-intestinal bug e.g. norovirus or during pregnancy ( see https://breastfeeding-and-medication.co.uk/thoughts/suffering-from-morning-sickness-and-still-breastfeeding ) or it may be to help with symptoms produced by medication e.g. oral morphine or even antibiotics.
Here is a factsheet on the most commonly used drugs. It is taken from my book Breastfeeding and Medication which includes all the references. Maybe you need a copy?
If you have a question please email firstname.lastname@example.org