Cafergot Active ingredient: caffeine, ergotamine $0.63 for pill Cafergot (Caffeine/Ergotamine) is used for preventing and treating certain kinds of headaches. Anacin Active ingredient: aspirin, caffeine $0.43 for pill Anacin is a pain reliever intended for the temporary relief of minor aches and pains. Anacin is a combination salicylate and stimulant. It works by blocking several different chemical processes within the body that cause pain, inflammation, and fever. It also reduces the tendency for blood to clot.