Hyprogest 100mg Capsule is used to prevent premature labor in pregnant women in order to reduce the risk of giving birth too early (preterm birth). It prevents miscarriage and lower the risk of premature birth in women who have had one premature delivery in the past. Hyprogest 100mg Capsule should be taken as your doctor advice. Your doctor will decide how much you need to take and for how much time. You may take it with or without food but better to take it at a fixed time. You should take this medicine for as long as it is prescribed for you. The most common side effects of this medicine include nausea, hives, and diarrhea. If it bothers you, let your doctor know. There may be ways of reducing or preventing it. It may affect blood sugar levels, so monitor your blood sugar regularly. It is better to inform the doctor if you notice yellowing of eyes or skin, dark urine, or stomach pain while using this medicine. Before taking this medicine inform doctor, if you have ever had any problems with your blood circulation or have diabetes, or any liver disease. Your doctor should also know about all other medicines you are taking as many of these may make this medicine less effective or change the way it works.