Panadol ActiFast caplets contain Paracetamol which relieves pain and fever. The caplets have been specially formulated so that Paracetamol is absorbed into the bloodsteam at least twice as fast as from ordinary Paracetamol tablets, providing faster pain relief. Like other Panadol products, Panadol ActiFast is gentle on your stomach. Each caplet contains 173mg sodium per caplet. Consult your doctor before taking this medicine if you are on a medically recommended low sodium diet.