Taking bowel cleansing medication and drinking two cups, the last cup drank and vomited is a certain effect, but may not be effective, clean bowel is not clean.
The effect of taking the cleansing drug is generally considered to be whether the last bowel movement is watery or yellowish, no fecal matter as a judgment. So you can make your own judgment based on whether your bowel movements are watery or not.
The dosage of the laxative for colon cleansing will increase, and there is a certain risk of taking the drug, so be careful to take it under the guidance of your doctor. The last cup of the cleansing medicine spit, but the first two cups of the medicine is there, if usually no constipation exists, and recently eat a light diet, is to achieve the effect of cleansing.
Specific medication should be taken under the guidance of a doctor.