Let's take a minute to talk about your medication. 

This is tizanidine, and it is used to treat muscle spasms. Unless your doctor says otherwise, it's important to take it on an empty stomach, which is at least 30 minutes before eating or 2 hours after. It starts working in about 30 minutes, but full effects take over an hour.  

At first most people feel sleepy, so don't do activities that require you to be alert, like driving, until you know how it affects you. It can lower your blood pressure and make you dizzy, so stand slowly after sitting or lying down to reduce this. Also, you could have a dry mouth or weakness. These are normal if they are mild, and should go away.  If these or other side effects become reasons you want to stop taking it, please talk to your doctor or pharmacist. But, if you take it regularly, don't suddenly stop unless your doctor says it's okay.  

To reduce side effects, avoid alcohol, and talk to your doctor or pharmacist before taking any new medication or herbals.  

In rare cases, serious side effects could occur, so call your doctor right away if you notice unusual changes to your body, like vomiting, fainting, hallucinating or a very slow heartbeat.   

For best results, take tizanidine only as directed, and work with your doctor to find the lowest dose that helps you.