It is possible to wash out the gelling agent or thickener, leaving {HEAD ~ only the small drug particles} for use in the formulation of {TAIL ~ a pharmaceutical product} 
It is possible to wash out the gelling agent or thickener , leaving { HEAD ~ only the small drug particles } for use in the formulation of { TAIL ~ a pharmaceutical product }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL