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.
The same thing happened to me. I was using 40,000 unit pills and took 3 to 6 pills per day for scar tissue, sinuses and to last my cholesterol. It worked beautifully. I then bought 120k units pills and tried taking 1 became ill but didn't relate it to the serrapeptase.