▁to ▁util ize ▁custom - comp ounded ▁pol yp ills ▁prepared ▁by ▁a ▁comp ounding ▁ph arm ac ist ▁according ▁to ▁a ▁pres cription . ▁ ▁( Ph arma ce ut ical ▁comp ounding ▁is ▁the ▁practice ▁of ▁prepar ing ▁individual ized ▁drug ▁products ▁for ▁individual ▁patients , ▁which ▁can ▁aid ▁with ▁poly ph arm acy .) ▁If ▁an ▁ad verse ▁drug ▁reaction ▁occurs ▁from ▁using ▁an ▁F DC , ▁it ▁may ▁be ▁difficult ▁to ▁identify ▁the ▁active ▁ing red ient ▁responsible ▁for ▁causing ▁the ▁reaction . ▁This ▁problem ▁might ▁be ▁alle vi ated ▁by ▁starting ▁the ▁medic ations ▁individually ▁and ▁monitoring ▁for ▁re actions , ▁and ▁then ▁switching ▁to ▁an ▁F DC ▁when ▁no ▁problems ▁have ▁been ▁observed ▁( ass uming ▁of ▁course ▁that ▁it ' s ▁the ▁active ▁ing red ient ▁causing ▁the ▁problem ). ▁ ▁References ▁ ▁External ▁links ▁ ▁Category : D os age ▁forms ▁▁ ▁fi : Y h dist elm äl ä ä k ke et <0x0A> </s> ▁The ▁B up a ▁Great ▁Capital ▁Run ▁was ▁a ▁ ▁run ▁through ▁the ▁paths ▁of ▁Hy de ▁Park , ▁London ▁( and ▁later ▁Reg ents ▁Park ) ▁which ▁was ▁established ▁in ▁ 2 0 0 7 . ▁It ▁was ▁one ▁of ▁the ▁Great ▁Run ▁race ▁series . ▁ ▁The ▁event ▁started ▁in ▁ 2 0 0 7 ▁as ▁a ▁ 1 0 k ▁race ▁in ▁Hy de ▁Park , ▁spons ored ▁by ▁B up a . ▁This ▁format ▁continued ▁in ▁ 2 0 0 8 ▁with ▁a ▁new ▁event