men at risk of priapism, e.g. if you have sickle cell anaemia
men using other erectile dysfunction medications
men with a penile implant
men who have been told to avoid sexual activity
men with the following conditions should not use alprostadil:
neurogenic conditions involve your nervous system, i.e. your brain, nerves and spinal cord. multiple sclerosis, parkinson�s disease, a spinal disorder or a stroke are examples of neurogenic conditions that can all result in ed.