The unpopular measures were adopted thanks to the slim parliamentary majority held by Prime Minister Alexis Tsipras' coalition government — the main New Democracy opposition party voted against the austerity package.
Earlier outside parliament, Greek riot police fired tear gas to disperse demonstrators throwing Molotov cocktails to protest against the reforms.
Greek television showed police firing volleys of tear gas in response to projectiles lobbed by masked youths during the demonstration, which attracted about 10,000 people.
