Good Luck with your new adventure.
Prostap is the English name, in France it is called Decapeptyl. It is an expensive drug, about 450€ so it would be better to have it covered by the Affectation de longue duree and carte vitale, and this will depend on your medical cover in France. You will need to register with a doctor, to get an Ordonnance, which is the prescription or referral that you need to buy medication and to receive treatment. If you receive the Affectation de Longue Duree, which essentially is free health cover to those with long term illness, all this will be free. I am not sure what the cost would be if you are not in the system.
It may be an option that you can still buy it in the UK and bring it over, but we are really not sure, you will also have to check this with your doctor.
Apparently, in France they administer it every three months, not eight weeks. Also, there are two different liquids, depending on the stage you are at.
Any nurse or infirmiere a domicile (which is the equivalent of a district nurse that comes to the house) can administer it. The injection itself cost 8.58€ so really cheap, but you will still need that ordonnance from the doctor.
If you would like to find out more, please let me know and I can arrange for you to speak to someone about it directly. We have people available who know the French system intimately and can assist you in finding out the information that you need. Call the helpline 0800 240 200 and I will let them know that I have messaged you on the forum and they will direct you back to us here in the Tarn.
Also, seeing as you are in the Tarn, it might be of interest to you to know that we have a drop in coffee morning every second and third Wednesday of the month, in Gaillac and St Antonin respectfully. Let me know if you would like some more information. We always have a trained CSF representative at these coffee mornings who will be able to assist you. They are informal social events, and everyone is welcome.
Take care and look forward to hearing from you.