Propess Pessaries is a medicine used to induce labor in women, who are ready to deliver a full term baby. It works by softening and widening the cervix (lower end of the uterus) and helps the baby to pass through easily. Propess Pessaries is not for self-application purposes as usually applied in hospital settings under the supervision of medical healthcare professionals. The dose and how often you take it depends on what you are taking it for. You might be asked to lie down for at least 30 minutes after medicine application. The most common side effects of this medicine include vomiting, diarrhea, back pain, and flushing of the skin. If these bother you or appear serious, let your doctor know. There may be ways of reducing or preventing them. Before taking this medicine, tell your doctor if you have ever had liver or kidney disease, or have a heart attack, or have asthma or have high or low blood pressure. 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. You may be checked for contraction timely by your doctor while on treatment with this medicine.