P-Aminosalicylic Acid   8 studies
Paclitaxel   1171 studies
Palivizumab   9 studies
Palmitic Acid   5 studies
Palonosetron   19 studies
Pamidronate   29 studies
Pancreatic Polypeptide   26 studies
Pancreatin   4 studies
Pancrelipase   376 studies
Pantoprazole   56 studies
Pantothenic Acid   6 studies
Papaverine   2 studies
Paraldehyde   1 study
Parecoxib   13 studies
Paromomycin   14 studies
Paroxetine   136 studies
Parthenolide   2 studies
Pegaspargase   49 studies
Peginterferon alfa-2a   179 studies
Peginterferon alfa-2b   169 studies
Pemetrexed   275 studies
Pemoline   2 studies
Penciclovir   1 study
Penclomedine   2 studies
Penicillamine   2 studies
Penicillanic Acid   20 studies
Penicillin G   9 studies
Penicillin G, Benzathine   9 studies
Penicillin G, Procaine   9 studies
Penicillin V   8 studies
Pentamidine   29 studies
Pentazocine   2 studies
Pentetic Acid   11 studies
Pentobarbital   7 studies
Pentosan Sulfuric Polyester   3 studies
Pentostatin   36 studies
Pentoxifylline   34 studies
Pergolide   11 studies
Perhexiline   5 studies
Perilla alcohol   6 studies
Perindopril   10 studies
Peripheral Nervous System Agents   6580 studies
Permethrin   10 studies
Permixon   4 studies
Perphenazine   7 studies
Petrolatum   7 studies
Phenethyl isothiocyanate   2 studies
Phenobarbital   9 studies
Phenoxybenzamine   3 studies
Phenprocoumon   4 studies
Phentermine   15 studies
Phentolamine   10 studies
Phenylacetic acid   5 studies
Phenylephrine   223 studies
Phenylmethylpyrazolone   7 studies
Phenylpropanolamine   151 studies
Phenytoin   38 studies
Phosphodiesterase Inhibitors   409 studies
Phosphonoacetic Acid   23 studies
Photosensitizing Agents   176 studies
Phthalocyanine   2 studies
Physostigmine   5 studies
Phytoestrogens   42 studies
Picibanil   3 studies
Picolinic acid   11 studies
Picosulfate sodium   4 studies
Pilocarpine   14 studies
Pimagedine   3 studies
Pimecrolimus   46 studies
Pimonidazole   1 study
Pimozide   3 studies
Pindolol   5 studies
Pioglitazone   209 studies
Pipamperone   1 study
Piperacillin   26 studies
Piperacillin-tazobactam combination product   26 studies
Piperaquine   12 studies
Piracetam   60 studies
Pirarubicin   1 study
Pirfenidone   14 studies
Piribedil   3 studies
Pirinitramide   3 studies
Piritrexim   1 study
Piroxicam   4 studies
Pituitary Adenylate Cyclase-Activating Polypeptide   1 study
PK 11195   3 studies
Plasma Substitutes   37 studies
Plasmin   7 studies
Plasminogen   56 studies
Plasminogen Activator Inhibitor 1   10 studies
Plasminogen Inactivators   2 studies
Platelet Aggregation Inhibitors   572 studies
Platelet Factor 4   5 studies
Platelet-derived growth factor BB   8 studies
Pleconaril   2 studies
Policosanol   6 studies
Polidocanol   7 studies
Poly I-C   4 studies
Poly ICLC   12 studies
Polyestradiol phosphate   284 studies
Polygeline   2 studies
Polyhexamethylene biguanide   2 studies
Polymethyl Methacrylate   18 studies
Polymyxin B   6 studies
Polymyxins   7 studies
Polyvinyl alcohol formaldehyde foam   1 study
Poractant alfa   3 studies
Porfiromycin   2 studies
Posaconazole   21 studies
Potassium Channel Blockers   19 studies
Potassium Citrate   5 studies
Potassium phosphate   3 studies
Povidone   20 studies
Povidone-Iodine   18 studies
Pralidoxime   1 study
Pramipexol   63 studies
Pramlintide   30 studies
Pranlukast   2 studies
Pravastatin   74 studies
Praziquantel   12 studies
Prazosin   25 studies
Prednimustine   1 study
Prednisolone   391 studies
Prednisolone acetate   391 studies
Prednisone   542 studies
Pregabalin   137 studies
Prexige   16 studies
Prilocaine   6 studies
Primaquine   9 studies
Primidone   2 studies
Pristinamycin   1 study
Proanthocyanidin   4 studies
Probenecid   16 studies
Probucol   7 studies
Procainamide   6 studies
Procaine   9 studies
Procarbazine   48 studies
Procaterol   3 studies
Procetofen   78 studies
Prochlorperazine   12 studies
Procyanidin   4 studies
Progesterone   166 studies
Progestins   147 studies
Promethazine   36 studies
Propafenone   7 studies
Propiverine   3 studies
Propofol   150 studies
Propolis   2 studies
Propranolol   64 studies
Prostaglandin Antagonists   2 studies
Protamines   20 studies
Protease Inhibitors   1533 studies
Protein C   35 studies
Protein C Inhibitor   25 studies
Protein Kinase Inhibitors   1511 studies
Proton Pump Inhibitors   91 studies
Protriptyline   2 studies
Proxymetacaine   14 studies
PS-K   69 studies
Pseudoephedrine   106 studies
Psilocybine   4 studies
Psoralens   4 studies
Psychotropic Drugs   2611 studies
Psyllium   6 studies
Puerarin   1 study
Pulmonary Surfactant-Associated Protein B   1 study
Pulmonary Surfactant-Associated Protein C   1 study
Pulmonary Surfactant-Associated Protein D   1 study
Pulmonary Surfactant-Associated Proteins   2 studies
Pulmonary Surfactants   34 studies
Pycnogenols   4 studies
Pyrazinamide   21 studies
Pyridostigmine Bromide   6 studies
Pyridoxal   54 studies
Pyridoxal isonicotinoyl hydrazone   1 study
Pyridoxal Phosphate   7 studies
Pyridoxamine   4 studies
Pyridoxine   56 studies
Pyrimethamine   106 studies
Pyronaridine   6 studies