Genuine Bayer Aspirin provides pain relief from headaches, backaches, muscle pain, toothaches, menstrual pain and minor arthritis pain and has for over 100 years. It can also be taken, under a doctor's supervision, to help reduce the risk of a recurrent heart attack or ischemic stroke. No other leading brand of pain reliever can do that. Taking Genuine Bayer Aspirin for pain relief does not interfere with the benefits of taking it on a doctor-directed aspirin regimen. Aspirin is not appropriate for everyone, so be sure to talk to your doctor before you begin an aspirin regimen. Among OTC brands.