was transferred to a graduated cylinder and stored at room temperature visual observations were made at the time points indicated in table 3 below and the sedimentation volume ratio was recorded sedimentation volume ratio was calculated as follows sedimentation volume total volume u00d7 100 the results in table 3 show a dramatic change in the physical stability settling of the composition of comparative example 1 between 20 and 40 minutes after standing at room temperature in contrast the suspension compositions of the present invention examples 1 3 showed no such dramatic settling with the suspension compositions of examples 1 and 2 remaining 100 homogeneous through the 60 minute testing period the compositions of examples 1 3 and comparative example 1 were evaluated to determine their u2018 syringeability u2019 u2014 the relative ease with which they could be extruded through a needle of a given size the compositions of examples 1 3 and comparative example 1 were tested using an instron machine model 4501 load cell model 2525 807 capacity 22 48 lbs used for all samples except comp ex 1 load cell model 2518 805 capacity 1124 lbs used for comp ex 1 samples to determine the amount of force pound foot required to extrude them from syringes using two needle sizes.