Hi, Thanks for using HCM.
Bowel preparation requires complete clear evacuation of your bowel to avoid any problem like infection during surgery and for clear surgery. You need to take whole amount but can take break with sweat tea. Finish it in max 2 hour as the entire amount is required to act completely and properly. Follow your doctor advice
as this is for one time and you won't take regularly. . Hope I answered your question. Feel free to ask me if you have any further queries.
Wish you good health. Take care.