Ibunol 400mg/500mg Tablet contains two painkiller medicines. They work together to reduce pain, fever, and inflammation. It is used to treat many conditions such as headache, muscle pain, pain during periods, toothache, and joint pain. Ibunol 400mg/500mg Tablet is best taken with food to reduce side effects. The dose and how often you need it will be decided by your doctor. You should take it regularly as advised by your doctor. Medicines used to treat pain are usually best taken at the first sign of pain. It is meant for short-term use only. Consult your doctor if the symptoms persist or worsen or if the medicine is required for use beyond 3 days. Side effects are rare if this medicine is used correctly but it may cause heartburn, indigestion, nausea, and stomach pain. Consult your doctor if any of these bother you or do not go away. This medicine is widely prescribed and considered safe but may not be suitable for everybody. Before taking it, let your doctor know if you drink a lot of alcohol, are using blood-thinning medicines, or have asthma or any liver or kidney problems. It may affect the dose or suitability of this medicine. Pregnant or breastfeeding women should also consult their doctor before using it. Let your doctor know about all the other medicines you are taking because they may affect, or be affected by, this medicine. It is best to avoid drinking alcohol while using this medicine.