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.
Most Hydrocodone pills have a time release coating that hinders the fast action relief some might want. However it also makes the time last longer and absorb the most effectively. If you however BITE and crush the pill breaking that coating you should get faster relief, like in about 20 minutes time.