I had cisplatinum, with the 3 doses (1st, 4th and 7th week). Or it was supposed to be 3 doses. But the cisplatin massacred my white blood cell count (and my red blood cell count, actually, despite taking Procrit to help prevent that) and so the second dose was 4 days into the 4th week because they wouldn't give it when my WBC was below a certain number so I had to wait for it to creep up a little, and for the third dose both blood counts were so low, and then I got a fever indicating some kind of infection, and so it never happened at all.
I wasn't offered any other options but if I had it to do over again (thank God I don't) I'd ask if I could do smaller doses every week and I'd ask about some of the alternatives to cisplatin.
What Gale said about educating yourself about chemo is very important. I wasn't sent to a class but everyone at my MO's office who gets chemo first meets for a good hal hour or longer with a nurse practitioner there who has been an oncology nurse for decades and seen it all. She was VERY thorough in telling me what to expect, what serious things to watch for, and managed to do it without scaring me or making me expect the worse (in fact, she had me expecting it could go really easily although, for me, it turned out to actually have some pretty severe effects--but I'm glad I was not led to expect the worst but was nonetheless prepared for the worst by her).
Ask lots of questions of your MO and also feel free to ask more here.
Nelie