Posology: One pessary is administered high into the posterior vaginal fornix.
The pessary should be removed after 24 hours irrespective of whether cervical ripening has been achieved.
A dosing interval of at least 30 minutes is recommended for the sequential use of oxytocin following the removal of the pessary.
Paediatric population: The safety and efficacy of PROPESS in pregnant woman aged less than 18 years has not been established. No data are available.
Method of administration: Administration: PROPESS should be removed from the freezer in direct connection with the insertion. No thawing is required prior to use.
There is a "tearmark" on side of the foil sachet. Open the package along the tear mark across the top of the sachet. Do not use scissors or other sharp objects which may cut the retrieval system. The pessary should be inserted high into the posterior vaginal fornix using only small amounts of water soluble lubricants to aid insertion. After the pessary has been inserted, the withdrawal tape may be cut with scissors always ensuring there is sufficient tape outside the vagina to allow removal. No attempt should be made to tuck the end of the tape into the vagina as this may make retrieval more difficult.
The patient should be recumbent for 20 minutes to 30 minutes after insertion. As dinoprostone will be released continuously over a period of 24 hours, it is important to monitor uterine contractions and fetal condition at frequent regular intervals.
Removal: The pessary can be removed quickly and easily by gentle traction of the retrieval tape.
It is necessary to remove the pessary to terminate drug administration when cervical ripening is judged to be complete or for any of the reasons listed as follows: Onset of labour. For the purposes of induction of labour with PROPESS, the onset of labour is defined as the presence of regular painful uterine contractions occurring every 3 minutes irrespective of any cervical change. There are two important points to note: (i) Once regular, painful contractions have been established with PROPESS, they will not reduce in frequency or intensity as long as PROPESS remains in situ because dinoprostone is still being administered.
(ii) Patients, particularly multigravidae, may develop regular painful contractions without any apparent cervical change. Effacement and dilatation of the cervix may not occur until uterine activity is established. Because of this, once regular painful uterine activity is established with PROPESS in situ, the pessary should be removed irrespective of cervical state to avoid the risk of uterine hyperstimulation.
Spontaneous rupture of the membranes or amniotomy.
Any suggestion of uterine hyperstimulation or hypertonic uterine contractions.
Evidence of fetal distress.
Evidence of maternal systemic adverse dinoprostone effects such as nausea, vomiting, hypotension or tachycardia.
At least 30 minutes prior to starting an intravenous infusion of oxytocin, as there is a much greater risk of hyperstimulation if the dinoprostone source is not removed before administration of oxytocin.
The opening on one side of the retrieval device is present only to allow the manufacturer to enclose the pessary into the retrieval device during manufacture. The pessary should NEVER be removed from the retrieval device.
On removal of the product from the vagina, the pessary will have swollen to 2‑3 times its original size and be pliable.