They don't call it "FU" for nothing lol. You may see different side effects with the addition of these two drug combinations, like "hand and foot syndrome", neuropathy, hair loss, others, as opposed to Cisplatin alone, and hopefully none of these. This treatment actually sounds like TPF induction Chemo with Taxotere. Cisplatin, 5-FU, which I had, and can be controversial, debatable, and is usually given as neoadunct, not adjunct therapy, but heard of it being given to unresponsive tumors. One thing I heard is that cancer cells can't be killed twice, so this may be excessive chemo, but your doctor knows better than me.
Good luck with everything.