Flexon in EnglishFlexon is a prescription drug, available for use as Suspension, Tablet , Cream, Syrup. Secondary and off-label uses of Flexon have also been mentioned below. Medical history of the patient along with age and gender determines the dosage of Flexon . Dosage also depends on the route of administration and your chief complaint for which the drug is prescribed. Detailed information has been provided in the dosage section. Common side effects of Flexon include Nausea or vomiting ... Flexon Tablet is a combination of ibuprofen and paracetamol for pain relief, fever and inflammation. It is a prescription medicine that may cause stomach problems, drowsiness and liver damage. Flexon Tablet is a combination of paracetamol and ibuprofen used to relieve pain and fever. It has various side effects, contraindications, and interactions that should be considered before use.