Greek Parliament voted early on Thursday in favour of the SYRIZA-ANEL proposal to probe 10 politicians over allegations that they were involved in the Novartis scandal.
A parliamentary committee of 21 members will be set up and the process is expected to last for at least one month.
Prime Minister Alexis Tsipras called on lawmakers late on Wednesday night to back a government proposal to form a parliamentary committee to investigate whether 10 prominent politicians were involved in an alleged bribery scandal perpetrated by Swiss drugmaker Novartis.