Okay kiddo, so you know how our body has a control center called the brain? Well, there are two parts of our nervous system that help our brain control our body. One is called the sympathetic nervous system, and the other is called the parasympathetic nervous system.
The sympathetic nervous system helps us with "fight or flight" responses when we feel scared or excited. The parasympathetic nervous system helps us with "rest and digest" activities like breathing and digesting food.
Now, sometimes when we are sick or our body needs a little help, doctors give us medicines called drugs. One kind of drug is called a parasympathomimetic drug. This drug helps our body to act more like the parasympathetic nervous system.
For example, if we have trouble breathing because our lungs are tight, doctors might give us a parasympathomimetic drug to help relax our muscles. Or if we have trouble going to the bathroom, a parasympathomimetic drug can help our digestive system work better.
So basically, a parasympathomimetic drug is like a helper that tells our body to be more relaxed and chill, so we can feel better and get well faster!