P-RNAV is a uniquely European approval and is called RNAV 1 in PANS-OPS (or will be when the next amendment is published this November) You should never fly an RNAV SID or STAR using B-RNAV unless it clearly states on the chart that this is authorised. The problem is that the chart that the State publishes is generally not the chart that the pilot sees - EAG, Jepp et al have their own company standards and sometimes stuff can get missed in the transfer from State to Industry.
As far as flight planning is concerned, stand by for a change when the new PBN rules come in - not sure when, but you will be asked to file PBN/D1-4 if Field 18. D1= RNAV 1 All sensors, D2= RNAV 1 GNSS, D3=RNAV 1 DME/DME and D4=RNAV 1 DME/DME/IRU