Caffeine is a commonly used drug that increases alertness, decreases fatigue, and improves muscle coordination. Though coffee comes to mind as the most common source of caffeine, it's also naturally found in tea and chocolate, and it is often added to soft drinks and non-prescription drugs like pain-relievers and cold remedies. People vary in their sensitivity to caffeine. If used excessively, caffeine can be too stimulating and cause anxiety, sleep problems, muscle twitching, or abdominal pain.
How Does Caffeine Treat Headaches?
Caffeine is a common ingredient in many prescription and over-the-counter headache medications (see list below). Caffeine additives make pain relievers 40% more effective in treating headaches. Caffeine also helps the body absorb headache drugs more quickly, bringing faster relief. By adding caffeine and, in turn, taking less medication, you can reduce the risk for potential side effects and possible drug addiction.
Note: The drugs listed are some of the more common drugs containing caffeine; all drugs containing caffeine are not included. Always check the labels of over-the-counter medications for the caffeine content. Or ask your doctor or pharmacist about the caffeine content of your medications.