By API Standards
- P7C3-A21
- Pacritinib
- Palbociclib
- Paliperidone
- Pantoprazole
- Paracetamol
- Pentoxyfylline
- Perampanel
- Perindoprilat
- Perphenazine
- Pharacine
- Phenethyl
- Phenindione
- Phenothiazine
- PHPB
- Pimavanserine
- Pimobendan
- Pimozide
- Pinaverium
- Pinaverium Bromide
- Pioglitazone
- Pirfenidone
- Piribedil
- Piroxicam
- Pitavastatin
- Pitofenone
- Plerixafor
- Pomalidomide
- Ponatinib
- Posaconazole
- Pracinostat
- Prasugrel
- Praziquantel
- Prazosin
- Prednisolone
- Prednisone
- Prochlorperazine
- Progesterone
- Proguanil
- Promestriene
- Promethazine
- Propranolol
- Prucalopride
- Pyridostigmine
- Pyridoxine