I am badly constipated. miralax and senna do not help much. can i take bisacodyl and docusate at the same time?

Yes.: Docusate is a stool softener, bisacodyl is a stimulant laxative, miralax is a polyethylene glycol laxative. Other options would include magnesium citrate which is a liquid bottle sold over the counter, or milk of magnesia. Other consideration would be to work from the other end with an enema like a Fleets enema. Sometimes these can be helpful for severe constipation.

Yes: Yes, you can take both. However if you have the urge to have a bm but can't, work from below with using dulcolax rectal suppository or a fleets enema or even a tap water enema. If you have no urge to move, then try the dulcolax by mouth. If you're experiencing abdominal pain, distension, vomiting get examined by a physician. A rectal exam will reveal whether you need to be manually disimpacted

See GI: If this has been a persistent problem , it is best for you to consult a GI doctor to find out why. In the meanwhile, you may try Metamucil instead of Miralex, probiotics, drinking 2-3 cups of coffee, and exercising 30 mins daily to see if these measures help. Yes you can take these two preparations at the same time but you cannot use them safely on a regular basis.