I also use both miralax as a stool softener + 300 mg of mag citrate to stimulate activity. Per my GI both are safe for chronic constipation. Drink coffee as well in the am with the mag citrate. Get pretty strong reaction with numerous movements with the coffee on an empty stomach. Need to experiment with the amount of coffee to avoid excess movements. Please comment on this protocol and let me know if I I can do anything more. Thanks