- Pantoprazole
- Papaverine
- Paracetamol
- Parecoxib
- Paromomycin
- Pefloxacin
- Penbutolol
- Penciclovir
- Perindopril
- Permethrin
- Phenobarbital
- Phenylbutazone
- Phenylephrine
- Phenylpropanolamine
- Phenytoin
- Pilocarpine
- Pioglitazone
- Piracetam
- Piroxicam
- Policresulen
- Potassium Acetate
- Povidone Iodine
- Pramipexole
- Praziquantel
- Prednisolone
- Prednisone
- Pregabalin
- Probenecid
- Procainamide
- Prochlorperazine