Dispersible Aspirin 300mg Tablets Dispersible Aspirin 300mg Tablets relieve pain, swelling & high temperature, making them great for treating headaches, migraine, neuralgia, toothache, sore throat, period pains & for the relief of sprains, strains, rheumatic pain, sciatica, lumbago, muscle aches, fibrositis, joint swelling & stiffness. They can also be used to relieve the symptoms of flu & feverish colds. Aspirin belongs to a group of medicines known as non-steroidal anti-inflammatory drugs (NSAIDs) & works as a pain reliever, antipyretic (which means that it reduces temperature) & anti-inflammatory.