Interfering with how the medicine is digested and absorbed by the body. For example, milk blocks iron absorption in the stomach. Other foods, containing higher levels of fat and fiber, slow down the rate at which your stomach empties and the rate at which your medication is absorbed by your body.
For carry-on bags, all liquid toiletries, such as toothpaste and lotion, must be in bottles or packages clearly labeled as containing 3.4 ounces (100 ml) or less of liquid, according to the TSA. Non-liquid toiletries do not have an individual size limitation if they fit inside a carry-on bag.
If the toilet was made before 1994, hard water deposits in the syphon jet hole or the angled bowl rim swirl holes may be the source of your frustration. You can try to clean them out with wood sticks and oversized toothpicks, but a muriatic acid wash will really do the job. Mix one part acid to 10 parts water.