▁ko a ▁had ▁annual ▁sales ▁of ▁H K $ 3 5 0 ▁million ▁in ▁ 2 0 1 4 . ▁ ▁Effect iveness ▁ ▁A ▁study ▁at ▁the ▁China ▁Academy ▁of ▁Trad itional ▁Chinese ▁Medicine ▁published ▁in ▁a ▁ 1 9 9 4 ▁article , ▁" Ph arm ac ological ▁studies ▁of ▁nin ▁j ion ▁pe i ▁pa ▁ko a ", ▁states ▁that ▁Nin ▁J iom ▁Pe i ▁Pa ▁Ko a ▁had ▁significant ▁c ough ▁rel ieving ▁and ▁s put um ▁removing ▁effects . ▁In ▁four ▁ac ute ▁or ▁sub - ac ute ▁infl am mat ory ▁models , ▁the ▁anti - infl am mat ory ▁effect ▁was ▁marked . ▁ ▁Com position ▁Pe i ▁pa ▁ko a ▁is ▁made ▁up ▁of ▁a ▁bl end ▁of ▁her bal ▁ing red ients ▁including ▁the ▁f rit ill ary ▁bul b ▁( B ul bus ▁f rit ill aria e ▁cir rh osa e , ▁), ▁lo qu at ▁leaf ▁( E ri ob ot ry a ▁japon ica , ▁), ▁lady bell ▁root ▁( A den op hora ▁strict a , ▁), ▁Indian ▁bread ▁( W olf ip oria ▁ext ensa ), ▁), ▁pom elo ▁pe el ▁( C it rus ▁maxim a , ▁), ▁ch inese ▁bell flow er ▁root ▁( Pl at yc odon ▁grand if lor um , ▁), ▁pin ell ia ▁rh iz ome ▁( P in ell ia ▁t ern ata , ▁), ▁Sch is andra ▁seed ▁( Sch is andra ▁ch in ensis , ▁), ▁Tr ich os