A therapeutically effective dose refers to that amount of {HEAD ~ active ingredient}, which ameliorates {TAIL ~ the symptoms} or condition 
A therapeutically effective dose refers to that amount of { HEAD ~ active ingredient } , which ameliorates { TAIL ~ the symptoms } or condition
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH