RESULTS	Compared with placebo , Sankang Capsule mainly had well-marked effects on dizziness , fatigue , palpitations , cough , sputum and sore throat ( P < 0.05 ) ; Rhodiola Rosea Capsule significantly reduced the symptoms of fatigue , drowsiness , chest tightness , palpitations , vertigo , lack of attention and memory loss ( P < 0.05 ) ; Shenqi Pollen Capsule significantly reduced the symptoms of dizziness , fatigue , weakness , chest tightness , palpitations , cough , sputum , sore throat , memory loss , unresponsiveness and limb numbness ( P < 0.05 ) .\