4 links
MedlinePlus: Aspirin
nlm.nih.gov
Provides information on usage, precautions, side effects and brand names when available. Data provided by government agencies and health-related organizations.
MedlinePlus: Aspirin, Butalbital, and Caffeine
nlm.nih.gov
Provides information on usage, precautions, side effects and brand names when available. Data provided by government agencies and health-related organizations.