(Average milligrams of caffeine )
|
Coffee Drip | 115-175/8 oz. |
Coffee Brewed | 80-130/8 oz. |
Coffee Expresso | 100/2 oz. |
Red Bull | 80/8 oz. |
Jolt | 71/12 oz. |
Pepsi One | 55/12 oz. |
Mountain Dew | 55/12 oz. |
Black Tea | 50/8 oz. |
Ice Tea | 47/8 oz. |
Diet Coke | 45/12 oz. |
Dr. Pepper | 41/12 oz. |
Sunkist Orange | 40/12 oz. |
Coke Classic | 34/12 oz. |
Nestea Iced Tea | 26/12 oz. |
Green Tea | 15-30/8 oz. |
Decaf. Tea | 4/8 oz. |
Hot cocoa | 14/8 oz. |
|
Caffeine is a chemical found in plants such as coffee, tea, and cacao. It is also present in most cola beverages. The drug increases the blood pressure, stimulates the central nervous system, promotes urine formation, and stimulates the action of the heart and lungs. Caffeine is used in treating migraine, increases the potency of analgesics such as aspirin, and can relieve asthma by widening the bronchial airways.
- It takes coffee or tea about 15 to 30 minutes to start having an effect on the brain
- It takes about 1 hour for caffeine to reach maximum blood levels
- The half-life of caffeine in the bloodstream is between three and seven hours (depending on the person's age activity and individual chemistry).
|