Megavog Mf Tablet can cause hypoglycemia (low blood sugar level). Symptoms of hypoglycemia include dizziness, fainting, feeling hungry, trembling or shaking, sweating, confusion, irregular heartbeat, difficulty concentrating, etc. It happens more often if you skip a meal, drink alcohol, over-exercise, or take other antidiabetic medicine. So, regular monitoring of blood glucose levels is important. Always keep glucose tablets, biscuits, toffee, honey, or fruit juice.