| Pamidronate Disodium |
| Pancuronium Bromide |
| Pantethine* |
| Panthenol |
| Papaverine Hydrochloride* |
| Paramethasone Acetate |
| Paromomycin Sulfate |
| Paroxetine Hydrochloride_hydrate |
| Pazufloxacin Mesilate |
| Pemoline |
| Penbutolol Sulfate* |
| Penflutizide |
| Penicillamine |
| Pentamidine Isetionate |
| Pentazocine* |
| Pentobarbital Calcium |
| Pentostatin |
| Pentoxifylline* |
| Pentoxyverine Citrate* |
| Peplomycin Sulfate* |
| Perazine Fendizoate |
| Pergolide Mesilate |
| Perospirone Hydrochloride_hydrate |
| Perphenazine Maleate* |
| Perphenazine* |
| Pethidine Hydrochloride* |
| Phenacetin* |
| Phenethicillin Potassium |
| Phenobarbital* |
| Phenolsulfonic Acid |
| Phenolsulfonphthalein* |
| Phenoxymethylpenicillin Potassium* |
| Phenprobamate |
| Phentolamine mesilate |
| l-Phenylalanine* |
| Phenylbutazone* |
| Phenylephrine Hydrochloride* |
| Phenyliodoundecynoate |
| Phenytoin* |
| Phtharal |
| Physostigmine Salicylate* |
| Phytonadione* |
| Pilocarpine Hydrochloride* |
| Pilsicainide Hydrochloride |
| Pimaricin |
| Pimobendan |
| Pimozide |
| Pindolol* |
| Pioglitazone Hydrochloride |
| Pipamperone Hydrochloride |
| Pipemidic Acid Trihydrate* |
| Piperacillin Sodium* |
| Piperazine Adipate* |
| Piperazine Phosphate* |
| Piperidolate Hydrochloride |
| Pipethanate Ethobromide |
| Piracetam |
| Pirarubicin |
| Pirbuterol Hydrochloride |
| Pirenoxine* |
| Pirenzepine Hydrochloride |
| Piretanide |
| Pirmenol Hydrochloride |
| Piroheptine Hydrochloride |
| Piromidic Acid |
| Piroxicam |
| Pitavastatin Calcium |
| Pivmecillinam Hydrochloride* |
| Platonin |
| Plaunotol |
| Potassium Canrenoate* |
| Potassium Clavulanate* |
| Potassium Gluconate |
| Pralidoxime Iodide |
| Pranlukast Hydrate |
| Pranoprofen* |
| Pravastatin Sodium |
| Prazepam* |
| Praziquantel |
| Prazosin Hydrochloride |
| Prednisolone Acetate* |
| Prednisolone Sodium Phosphate |
| Prednisolone Sodium Succinate for Injection* |
| Prednisolone Succinate* |
| Prednisolone Tebutate |
| Prednisolone Valerate Acetate |
| Prednisolone* |
| Pregnanediol |
| Pridinol Mesilate |
| Prifinium Bromide |
| Primidone* |
| Probenecid* |
| Probucol |
| Procainamide Hydrochloride* |
| Procaine Hydrochloride* |
| Procarbazine Hydrochloride* |
| Procaterol Hydrochloride* |
| Prochlorperazine Maleate* |
| Prochlorperazine |
| Profenamine Hydrochloride |
| Progesterone* |
| Proglumetacin Maleate |
| Proglumide* |
| Promethazine Hydrochloride |
| Propafenone Hydrochloride |
| Propantheline Bromide* |
| Propentofylline |
| Propericiazine |
| Propitocaine Hydrochloride |
| Propiverine Hydrochloride |
| Propofol |
| Propranolol Hydrochloride* |
| Propylene Glycol Cefatrizine* |
| Propylthiouracil* |
| Proscillaridin |
| Prosultiamine |
| Prothionamide* |
| Protirelin Tartrate* |
| Protirelin* |
| Protoporphyrin Disodium |
| Proxyphylline |
| Pyrantel Pamoate* |
| Pyrazinamide* |
| Pyridinol Carbamate |
| Pyridostigmine Bromide* |
| Pyridoxal Phosphate |
| Pyridoxine Hydrochloride* |