Hi, Proxyvon tablet is the painkiller medication which is used to treat fever and relief of aches and pains associated with flu, common colds, tonsilitis, toothache, post immunization reactions etc. It is safe and also used to reduce pain after surgery. It blocks chemical messengers in the brain that are responsible for pain sensation and fever. Side effects of Proxyvon are nausea, vomiting, upset stomach, stomach pain, loss of appetite, constipation, headache, dizziness, dark urine, jaundice, drowsiness, dry mouth, allergic reactions etc. Take care. Hope I have answered your questions. Let me know if I can assist you further. Regards, Dr. Zubayer Alam, General And Family Physician