Aspirin + Caffeine = Fast Pain Relief Trusted, safe and effective For minor aches and pains due to headache, muscular ache, back ache, toothache, menstrual cramps, a cold and arthritis Nonsteroidal anti-inflammatory drug (NSAID) Each box contains 100 coated tablets About Anacin: Feel Better Fast with Anacin. Trusted, Safe and Effective Anacin takes care of your tough pain fast. It’s all about the ingredients. Anacin contains two important ingredients - aspirin and caffeine - to deliver fast headache and pain relief. Caffeine complements and enhances aspirin's pain relieving power. Together, aspirin and caffeine work to deliver fast and effective headache and pain relief when you need it most. Remember, Aspirin + Caffeine = Fast Pain Relief. That’s the Anacin advantage.