Along with harmful toxins, activated charcoal will bind with certain types of prescription and over-the-counter drugs …
So avoid taking charcoal within at least an hour of any medications. The same goes for any supplements, or protein powders like Bulletproof Collagen or Whey.
If in doubt about activated charcoal’s effect on a particular drug, make sure to talk to your doctor first.
More extensive info on WebMD <--- click here! :)