Cairo ( CNN ) -- Ousted Egyptian leader Hosni Mubarak is depressed and refusing to eat as he awaits trial on charges of ordering police to kill anti-government protesters , a state news agency reported Tuesday . Mubarak is consuming only liquids and juices , is weak and has lost a lot of weight , Mohammed Fathallah , the head of the hospital where the ex-president is being held , told the state-run EgyptNews . Fathallah 's deputy , Dr. Asim Azzam , told the agency that the former leader 's vital signs were semi-stable . The 83-year-old Mubarak ruled Egypt for more than 29 years before a popular uprising drove him from office in February . He has been hospitalized since April , after suffering heart palpitations . Prosecutors have said Mubarak suffers from depression , fatigue , repeated irregular heartbeats , low blood pressure that could lead to fainting and an increased risk of heart attack . His lawyer disclosed in June that the ex-president been struggling with complications from 2010 surgery for stomach cancer . On July 18 , hospital officials reported that Mubarak had fallen into a coma , but one `` that did not last long , '' Fathallah told CNN . But he is still scheduled to stand trial in August on charges that he ordered police to turn their guns on demonstrators before his ouster -- a charge that carries a possible death sentence . Egyptian officials have said that courts can proceed with a trial if a defendant is in poor health or even on life support . Mubarak and his two sons are also accused of corruption and misusing state funds . He has denied the charges against him .
Doctors told a state news agency that he is weak and has no credibility . The former Egyptian leader has been ailing since his 2005 ouster .