I haven't heard of the term 3rd generation chemotherapy so can't comment on that regime.
I had ×3 FEC which stands for
Fluorouracil
Epirubicin
Cyclophoshamide
It was bright red in colour.
I also had x3 of Docetaxel.
I felt really tired during the 1st couple of days and slept for hours. Aside from that & the hair loss my side effects were pretty minimal. Although I did end up in hospital a couple of times with neutropenia. I was given an injection on my 2nd chemo which prevented this from happening. I'm told its pretty expensive and is not prescribed until you actually suffer from neutropenia.
I didn't work throughout chemo, looking back I might have managed after the 1st few days of my sessions once the tiredness subsided. I suppose it depends on the type of environment you work in.
Xxx