How to relieve constipation caused by activated charcoal use?

I see this is an old question but I'll answer it in case someone sees it needing a quick solution. FYI, I do medical coding & I studied anatomy, chemistry & physics in grad school, and also went to college for Global/Public Health, Neurology, Pharmacology, Physiology & Pathology. Yes, I've spent a lot of time getting educated about this stuff & I need continual education to maintain certifications. So quick answer: if you have 2 or 3 bucks get some "epsom salts" at your pharmacy or WalMart. It will loosen you up FAST. BE PREPARED & don't overdo it. The magnesium in it does the trick- alternately, you can just buy magnesium capsules or buy "Milk of Magnesia" - these options are more expensive but don't taste as bad. I wouldn't be surprised if this "sea salt cleanse" was just magnesium salts with a huge price tag on it. As far as "toxins" in your diet, as long as you aren't ingesting rat poison or something for lunch, your liver & your kidneys should be doing an adequate job of detoxifying your body- just drink water. Unless you have some problems such an end stage renal disease (in which case you just need to get dialysis) you shouldn't have a problem with "toxins" in your body. I'm not sure why you believe you have parasites but perhaps you live in an underdeveloped country with inadequate water treatment. In this case you should visit a physician for the proper stool test and medications- if you are finding evidence of parasites in your stool, try to bring a sample with you. On another note, I believe you may have been taken advantage of by some sort of "junk science" or pseudoscience on a celebrity blog that feeds upon people who aren't educated in a scientific field. It is a shame & travesty that there are those who will profit off of people who don't know any better. Again, you don't need to "cleanse" your body with anything other than perhaps some soap after you've been working in your garden- your liver & kidneys are what "cleanses" your body internally. If your urine & stools are fine (you can get a urinalysis from a laboratory if you are noticing an unusual color or scent) & you don't have some sort of organ failure, you should be fine. Again, I code everything from rectal hemorrhage to artificial pacemakers all day, every day & I'm quite certain you don't need an "internal cleanse" unless you need dialysis- in which case, that would be what you are doing dialysis for & you need to coordinate care with your endocrinologist. Please don't waste your hard-earned $ on "snake oil" salespeople. I've seen so many ridiculous things advertised, for example "alkaline" water, etc. (your body precisely regulates your pH JUST FINE- "alkaline" water would be neutralized the second it hits your stomach acid). The best thing you can do for your overall health is get enough cardiovascular exercise and do NOT SMOKE. These are the TWO THINGS that you can do to make sure you are in good health. Again, cardiovascular exercise & do not smoke. Other than that, eat sensibly for the amount of exercise you are getting to maintain a normal weight. That is it. Don't over-complicate things. Next time you are tempted to spend $ on the latest gimmick, just ask yourself how much exercise you got in this week. I hope this helps. Best of health!

Firstly, why were you taking the charcoal? I use it, sometimes, but never to relieve constipation. It is constipating.
Now, you have taken it, so let's try and deal with where you are now.

Have you tried stool softeners?
I use a product called Lactulose. It is a syrupy substance and what it does is pull water into the bowels. It does take a few hours to work AND you will have a lot of gas! It is nasty! It does work. It is available, at least here in Canada, behind the pharmacy counter. Here you do not need a prescription.
Good luck!
Let me know if this works for you!