Solpa-Extra Soluble Tablets contain two active ingredients. Paracetamol is a painkiller and also reduces your temperature when you have a fever. Caffeine acts to further help the effectiveness of paracetamol. The dual action of the ingredients provides fast and effective pain relief from headache and migraine. They can also relieve backache, muscle and joint pain, toothache, period pain, neuralgia, sore throat and the fever, aches and pains of colds and flu.