Hi, Common cause of vomiting is GIT upset or GIT irritation due to any causes. Vizylac capsules or Infi Nimesulide or both can cause GIT upset or GIT irritation as their side effects. Vizylac contains probiotic which is used to maintain normal gut flora that can be destroyed during an infection or using of medications. But, it has some side effects such as nausea, vomiting, abdominal distension, bloating, GIT upset etc. Infi Nimesulide is a non steroidal anti-inflammatory drugs (NSAIDS) is used to relieve pain due to any causes like toothache, migraines, painful menstruation, rheumatoid arthritis, osteoarthritic pain etc. Its side effects are nausea, vomiting, abdominal bloating, indigestion heartburn, stomach ulcers, diarrhea etc. If you feel nauseated or there is any episode of vomiting, then take Ondem as an antiemetic after consulting your doctor. Take plenty of fluids with less oily and spicy foods. If no nausea or vomiting is present, then no medication is needed. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Zubayer Alam, General And Family Physician