I take prednisolone, a blood pressure tablet and MMF for kidney disease. Would you advise I still get Juvederm lip filler?

It should be fine for you to proceed with your Juvederm treatment.  It is important for you to discuss your medical history and all medications that you take with your injector prior to treatment.

It is generally safe to have hyaluronic acid injections whilst on the medication mentioned. However, make sure you have the procedure carried out by a Consultant Dermatologist or Plastic surgeon and not just a cosmetic physician. This is important in order for them to properly assess your skin prior the procedure, and address any individual needs linked with your medical background.