ParaSustain 665 mg Sustained Release Tablet is a controlled release tablet with 665mg of Paracetamol. The active ingredient, paracetamol, is a commonly used pain killer/analgesic. It is also used for fever. Each tablet contains 665 mg of paracetamol, specially formulated to give a sustained release profile of the medicine. Each dose should provide up to 8 hours of pain relief. ParaSustain can be used for the effective temporary relief of discomfort and pain associated with muscle aches and pain such as backache, headache, menstrual pain, tension headache, flu & cold, tooth ache, pain after dental procedures and fever.