When a young person has a dual diagnosis of chemical dependency and a. bipolar disorder, most doctors choose to treat both conditions at once. This can be difficult unless the patient is in a hospital or other. residential situation, where presumably he will not have access to drugs or. alcohol. Doctors must also be careful about possible conflicts between. medications for bipolar symptoms and medications used for other. purposes.
3 to 3 hrs in stomach. 6 to 8 hrs for digestion. it stays in the stomach for 2 hours and then in the intestine for another 2 hours. the undigested food goes to the large intestine and the digested food goes to whole body through blood. Carbhydrates and proteins about 1 1/2 -2 hrs. Fats 2 hrs.
After you eat, it takes about  six to eight hours for food to pass through your stomach and small intestine. Food then enters your large intestine (colon) for further digestion, absorption of water and, finally, elimination of undigested food. In the 1980s, Mayo Clinic researchers measured digestion time in 21 healthy people. Total transit time, from eating to elimination in stool, averaged 53 hours (although that figure is a little overstated, because the markers used by the researchers passed more slowly through the stomach than actual food).