Caffeine in Pain Pills

Many expensive pain relievers on the market claim to have a special ingredient. If you read the label carefully you'll find the ingredient is caffeine. Caffeine acts as a booster to pain relievers. Drink a cup of coffee or tea within 20 minutes of taking a generic pain reliever and you get the same effect for a fraction of the cost. Caffeine also acts as a diuretic which is why it's included in menstrual symptom and pain relievers.