I do decaf coffee enemas. They seem to help give me some energy and stimulate the liver. The very first time i did one i was wired for 8 hours straight. Im very sensitive to caffeine so i did not even want to experiment with the caffeine coffee.
I do about cup of coffee and put it in a 8 oz syringe bottle. Then if your lucky you can hold it longer than 5 minutes without you feel like going to the bathroom. I try to hold it for about 10-15 minutes to sink in. It definetly stimulates bile that was evident through the colonic tube. I would do the enema early in the day cause it might be stimulating. I think bitters in general can be stimulating.