He was initially rushed to the Nonthavej Hospital then referred to Siriraj Hospital, where he was admitted to the Respiratory Care Unit, Professor Doctor Udom Kachinthorn , dean of Siriraj Medical School, said.
The doctor said no visitors would be allowed because the patient needed more rest.
Thanonsorn Lertritsirikul, a personal secretary to Sanan, said the Chart Thai Pattana chief advisor had been suffering from emphysema for a while. He suffered a severe attack of coughing and was unable to breathe due to a built-up mucus.
Thanonsorn said doctors expected Sanan could be discharged in a few days.
Sanan’s son, Deputy Agriculture Minister Siriwat Kachornprasart, visited Sanan at the Siriraj at noon. He was the only visitor permitted to enter Sanan’s room.