【炮制】    除去杂质，洗净，润透，切厚片，干燥。                                                    
        【性味与归经】    甘，平。归脾、肺经。                                                                        
        【功能与主治】    补中益气，健脾益肺。用于脾肺虚弱，气短心悸，食少便溏，虚
喘咳嗽，内热消渴。