Hi, Omez Insta is a medication that contains omeprazole, which is a proton pump inhibitor used to treat various conditions related to the stomach and digestive system. Omez Insta is commonly prescribed for the treatment of GERD, peptic ulcers, and other conditions that cause excess stomach acid production. Like any medication, Omez Insta can cause side effects in some people. Common side effects of Omez Insta may include headache, dizziness, diarrhea, constipation, nausea, vomiting, stomach pain, and gas. These side effects are generally mild and go away on their own as your body adjusts to the medication. Rarely, Omez Insta can cause more serious side effects, such as an allergic reaction, liver problems, or low magnesium levels. If you experience any of the following symptoms while taking Omez Insta, you should seek medical attention immediately: - Severe stomach pain or cramping - Bloody or black stools - Yellowing of the skin or eyes - Swelling of the face, lips, or tongue - Difficulty breathing - Chest pain or irregular heartbeat Regarding your loose motion, it is important to consult with your doctor about any changes in your symptoms or medications. If you experience any side effects or concerns related to Omez Insta or any other medication, you should speak to your doctor or pharmacist for further guidance. If you require a personalized response, kindly use the Ask A Doctor service and post a follow-up. Take care. Hope I have answered your question. Regards, Dr. Priyanka, General & Family Physician