A prodrug comprises a polyhydroxylated polyamine to which a drug is linked by {HEAD ~ the intermediary} of {TAIL ~ a peptidyl group} 
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A prodrug comprises a polyhydroxylated polyamine to which a drug is linked by { HEAD ~ the intermediary } of { TAIL ~ a peptidyl group }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL