One of the greatest medication delivery systems available today is osmotically controlled, as it is exceedingly successful and efficient. Osmotic drug delivery devices use the energy-distribution principle of osmotic pressure to deliver medications. Numerous biomedical benefits can be derived from oral osmotic drug delivery systems due to their adaptability and extremely consistent drug release rates. Since osmosis is the transfer from a lower concentration to a higher concentration, osmotic pressure is used in this situation to administer the medication appropriately. This approach allows us to release drugs in an appropriate manner because it is a widely recognized technique with intriguing applications and facts. Like pharmaceuticals, there are different drug delivery components. Each semi-permeable membrane and osmotic agent has a specific function and is necessary. It is one of the best in best method used now a days to get best results.