NO. The direct answer to this question is that electrolytes drinks don't cause constipation, instead they help the person suffering from constipation to feel better.

Does Pedialyte help poop?

It is a laxative that works by drawing large amounts of water into the colon. This effect results in watery bowel movements.

Does Pedialyte help a baby poop?

Although Pedialyte and other electrolyte solutions are usually recommended when children have diarrhea, it is important to realize that they don't actually make diarrhea go away. Instead of being a treatment for diarrhea, they are actually given so that your child doesn't become dehydrated.