Hi Swati,
my understanding was it's most effective every 21 days but I would ask the oncologist. I always had my dose after treatment. A good thing since the main nausea event will occur about 2 hours after infusion. Cisplatin's toxicity is well known and they may have a different regime for your father based on other health conditions. Strangely, in all of the sites I visited, no mention of radiation was made. All this time I thought that Cisplatin had to be an adjunct to radiation but that is not the case.

The link below will tell you more than you want to know about it, but it is interesting:
http://www2.mrc-lmb.cam.ac.uk/personal/sl/Html/Frames.html

Last edited by Gary; 01-03-2008 02:15 PM. Reason: This link is still good

Gary Allsebrook
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Dx 11/22/02, SCC, 6 x 3 cm Polypoid tumor, rt tonsil, Stage III/IVA, T3N0M0 G1/2
Tx 1/28/03 - 3/19/03, Cisplatin ct x2, IMRT, bilateral, with boost, x35(69.96Gy)
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"You are a mist that appears for a little while and then vanishes" (James 4:14 NIV)