pro-ben-e-cid. It is one of the few drug names that is spoken as it is spelt.
There is an audio file on the link below.
just click on the loud speaker to hear it
Some informations at the following sites:
http://www.nlm.nih.gov/medlineplus/druginfo/meds/a699059.html
http://www.patient.co.uk/medicine/Levetiracetam.htm
zy-PREX-uh & oh-LAN-zuh-peen
A great tool if you have an iPhone for drug pronunciations is this app called "Medical Drug Pronunciations" in the iTunes app store.