The most famous medicine in the world, Aspirin® (acetylsalicylic acid) is also one of the most extensively researched drugs in history. Since its market introduction under the trademarked name in 1899, Aspirin® has attained worldwide trust and use. Most people trust the classic Aspirin®, which has been present in houses around the world for over 100 years, as an effective therapy for pain, inflammation* and fever. Aspirin® is surprisingly versatile for alleviating headaches, body pains, backaches and other symptoms that interfere with everyday life.