The overlap in the terminology that is used to define asthma, chronic bronchitis, emphysema, COPD and bronchiectasis is the greatest cause of confusion in distinguishing these diseases and in accurately determining the prevalence of airway diseases.
Excedrin Extra Strength contains a combination of 250 mg of acetaminophen, 250 mg of aspirin and 65 mg of caffeine. This represents the original Excedrin created to treat headache pain. Excedrin also makes Excedrin Migraine to target the pain caused by migraine headaches. Excedrin Migraine contains 250 mg of acetaminophen, 250 mg of aspirin and 65 mg of therapeutically active caffeine.
The USDA National Nutrient Database states there are 2 mg of caffeine in each 6 oz. or 8 oz serving of Folgers decaffeinated coffee. Trace amounts exist in a 1 oz. serving. Considerations. According to MayoClinic.com, consuming 200 to 300 mg of caffeine per day, or about the amount of caffeine in 2 to 4 cups of coffee, is not harmful. However, if you consume 500 to 600 mg of caffeine per day or more it can cause a rapid heartbeat, insomnia, muscle tremors, irritability, nervousness or an upset stomach.