By API Standards
- P7C3-A21
- Paclitaxel
- Pacritinib
- Palbociclib
- Paliperidone
- Palonosetron
- Pantoprazole
- Paracetamol
- Parecoxib
- Paroxetine
- Pazopanib
- Pazufloxacin
- Pelitinib
- Pembrolizumab
- Pemetrexed
- Penciclovir
- Penicillamine
- Penicillin
- Pentoxifylline
- Pentoxyfylline
- Peptide
- Perampanel
- Perazine
- Perindopril
- Perindoprilat
- Permethrin
- Perphenazine
- Pethidine
- Phenacetin
- Phenindione
- Pheniramine
- Phenothiazine
- Phentermine
- Phenylalanine
- Phenylephrine
- Phenylephrine Hydrochloride
- Phenytoin
- Phenytoin Sodium
- Phloroglucinol
- PHPB
- Phytonadione
- Pidotimod
- Pimavanserin
- Pimavanserine
- Pimobendan
- Pimozide
- Pinaverium Bromide
- Pioglitazone
- Piperaquine
- Piracetam
- Pirfenidone
- Piribedil
- Piroxicam
- Pirtobrutinib
- Pitavastatin
- Pitofenone
- Pitolisant
- Polmacoxib
- Ponatinib
- Posaconazole
- Pracinostat
- Pramipexole
- Prasugrel
- Praziquantel
- Prazosin
- Prednisolone
- Prednisolone Acetate
- Pregabalin
- Pretomanid
- Prilocaine
- Prilocaine Hydrochloride
- Primaquine
- Prochlorperazine
- Procyclidine
- Progesterone
- Proguanil
- Promazine
- Promethazine
- Propafenone
- Proparacaine
- Propofol
- Propranolol
- Propyl Gallate
- Propyl Paraben
- Prucalopride
- Pteridine
- Pterostilbene
- Pyrantel
- Pyrazine
- Pyridostigmine
- Pyridoxal
- Pyridoxine
- Pyridoxine Hydrochloride
- Pyrimethamine