Per most of our protocols, cisplatin is run over 1 hour and since protocols are based off of how drug was given in trial, that is how infusion rates are usually defined. This is from Lexicomp: Cisplatin has been infused (off-label rates) over 30 minutes to 4 hours, at a rate of 1 mg/minute, or as a continuous infusion (off-label rates); infusion rate varies by protocol (refer to specific protocol for infusion details). Do not administer as a rapid IV injection.
Also, per NCCN:
Joy Lombardi, BSN, RN, OCN
Huntsman Outpatient Infusion
Huntsman Cancer Institute
Changing the DNA of Cancer Care