Colette wa Shinu Koto ni Shita, Kusuriya no Hitorigoto Recommendations
The main heroines of these two series' are adept in medicine. They find themselves working in an unexpected environment whilst using their knowledge as a Pharmacist /Doctor.
(Difference between the two)
Colette wa Shinu Koto ni Shita; is a fantasy shoujo manga while Kusuriya no Hitorigoto is a seinen manga which is more realistic than Colette.