Will all pills dissolve in the bladder and be absorbed??

Nothing gets absorbed in the bladder. The bladder is for liquids going out. Pills go to the stomach where they get mixed with acid and passed to the duodenum. The digestive tract is about 25 to 30 feet long and different things get absorbed at different locations. Sugar in orange juice can be in your blood stream in as little as 10 seconds, but some pills are designed to dissolve at various places in the digestive tract.