Quaternary ammonium muscle relaxants are medicines that help your muscles relax. They are made up of special chemicals called quaternary ammonium compounds that work like little keys that unlock certain parts of your muscles to make them stop contracting, or squeezing together tightly.
Imagine your muscles are like rubberbands that are always pulled tight. Sometimes they just need to loosen up so they can rest, and that's where these medicines come in. They help your muscles loosen up so you can move more easily and feel less pain.
These medicines are very strong so they can only be given by a doctor or other medical professional. They might use these medicines to help you get ready for surgery or other medical procedures, or to help you relax when you need to stay still for a long time.
It's important to remember that these medicines can have side effects, like making your heart beat faster or making you feel dizzy. Your doctor will make sure that you get the right amount of medicine to help you without making you feel worse.