Most of the parts will fall off because they are no longer needed. Stamen and petals will fall off (I cannot think of a plant where this doesn't happen). Sepals may or may not fall off. Think of a strawberry or a tomato. The leafy structures on these fruit are actually the remnants of the sepals.
Some pills are completely water soluble and therefore would dissolve in water faster than other liquids which are a mixture of water with other compounds. In some cases the sugar in Kool Aid and in Cola may cause some inhibition of the dissolution process.
Summary. Pills can be too large for people to swallow and many consumers have difficulty crushing these pills to make it easier for them to take. Currently available solutions often waste medication in the process of transferring the crushed medicine from a mortar to the syringe.