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

This medicine contains a combination of butalbital 50 mg, acetaminophen 325 mg and caffeine 40 mg. You should take it as directed by your doctor. You should only take it as needed, because it can be habit-forming if taken too frequently. 

This medicine can help relieve headaches, like tension headaches. 

It is usually well-tolerated, but some side effects can occur, like drowsiness, lightheadedness or problems with coordination. So, you should avoid activities that require you to be alert, like driving, until you know how it affects you. These effects can be made worse by drinking alcohol, so you should avoid it, too. If these or other side effects become reasons you want to stop taking this medicine, please talk to your doctor or pharmacist. 

In rare cases, serious side effects can occur, so call your doctor right away if you notice any unusual changes to your body, like signs of an allergic reaction, such as a rash or problems breathing. 

To reduce side effects, you should ask your doctor or pharmacist before taking any new medicines, even if they don't require a prescription. You should pay close attention to the total amount of acetaminophen you take each day from this and other medicines combined. Do not take more than 4000 mg per day total, because taking too much could harm your liver. 

For best results, use this medicine only when needed, and talk to your doctor if you don't get the relief you expect.