There is no contraindication to having PRP injected 2 weeks apart however for maximal response therapy should be continued.Additionally,for best results PRP should be combined with Minoxidil and/or Finasteride in a maintenance fashion.
In my opinion, PRP treatments with a two week separation should be effective. However, additional treatments are necessary in order to perpetuate the response. Find a PRP expert.PRPHAIRMD.COM