Why do you have to flush the toilet twice after chemo?

As an expert in the field of medical oncology, I can provide some insight into this practice. It's important to note that the recommendation to flush the toilet twice after using it following chemotherapy treatment is not a standard medical guideline. However, there might be a rationale behind this practice that is more about safety and hygiene rather than the movement of drugs through the body. Chemotherapy drugs can be excreted in urine and feces for a period of time after treatment, and these drugs can potentially be harmful to others if they come into contact with them. Flushing the toilet twice could be a way to ensure that any potentially contaminated urine or feces is thoroughly washed away, reducing the risk of exposure to others in the household. It's also worth mentioning that chemotherapy drugs can have a strong odor and flushing twice might help to eliminate this smell more effectively. Additionally, flushing twice could be a way to ensure that the toilet is properly cleaned, especially if there is a concern about the spread of infections due to a weakened immune system post-chemotherapy. In summary, while flushing the toilet twice is not a medically prescribed action for moving drugs through the body, it may be a precautionary measure taken by some individuals to enhance cleanliness and safety in the home environment after chemotherapy treatment.

This helps move the drugs through your body. Making sure to get rid of all your body fluids and waste after chemotherapy. For example, flush the toilet twice after using it. This is important because the medication stays in your body for about 48 hours after treatment.