Caffeine has 2 syllables and the stress is on the second syllable.
| # | Sentence | |
|---|---|---|
| 1. | How much caffeine is too much caffeine? | |
| 2. | In the first years that Coca-Cola was produced, it contained cocaine. In 1914, cocaine was classified as a narcotic, after which they used caffeine instead of cocaine in the production of Coca-Cola. | |
| 3. | Caffeine is a purinergic antagonist that competitively inhibits adenosine at the sites of P1 receptors. | |
| 4. | Masha prefers coffee without caffeine. | |
| 5. | Does Coca-Cola contain caffeine? | |
| 6. | I've been trying to cut down on caffeine. | |
| 7. | However, the coffee (mildly delicious) machine is always permitted for use. Yay, but ugh for caffeine! | |
| 8. | I have grown dependent on my daily dose of caffeine. | |
| 9. | I need caffeine. | |
| 10. | Caffeine is a drug. |