| Potassium gluconate Drug Metabolism |  | Metabolic | Potassium gluconate |
| Potassium lactate Drug Metabolism |  | Metabolic | Potassium lactate |
| Practolol Action Pathway |  | Drug Action | ATP / Practolol / Potassium cation / Calcium |
| Practolol Action Pathway (New) |  | Drug Action | ATP / Practolol / Calcium |
| Pralatrexate Action Pathway |  | Drug Action | Tetrahydrofolic acid / Glutamic acid / NADH / Folic acid / ATP / Calcium / Magnesium cation / Formic acid / Deoxyuridine monophosphate |
| Pramipexole Mechanism of Action Action Pathway |  | Drug Action | Pyridoxal phosphate / Tyrosine / ATP / Pramipexole / Dopamine / Levodopa / Calcium / Magnesium cation / Iron / Cyclic adenosine monophosphate / Pyrophosphoric acid |
| Pramipexole Predicted Metabolism Pathway |  | Metabolic | Pramipexole / Mesoheme |
| Prasugrel Action Pathway |  | Drug Action | Calcium / Magnesium cation / Cyclic adenosine monophosphate / Mesoheme / Prasugrel |
| Prasugrel Predicted Metabolism Pathway |  | Metabolic | Mesoheme / Prasugrel |
| Pravastatin Action Pathway |  | Drug Action | Cholecalciferol / ATP / Pravastatin / Magnesium cation / Iron / Dimethylallyl Diphosphate / Formic acid / Geranyl Diphosphate / Mesoheme / Flavin adenine dinucleotide / Palmitic Acid / Pyrophosphoric acid / Cholesterol / ISOPENTENYL PYROPHOSPHATE / Farnesyl diphosphate |
| Pravastatin Action Pathway (New) |  | Drug Action | Pravastatin / Calcium / Zinc / Cholesterol |
| Prazepam Action Pathway |  | Drug Action | Pyridoxal phosphate / Glutamic acid / ATP / Calcium / Magnesium cation / Prazepam / Cyclic adenosine monophosphate / gamma-Aminobutyric acid / Pyrophosphoric acid / Nordazepam |
| Prazosin Action Pathway |  | Drug Action | Prazosin / Calcium / Magnesium cation |
| Prazosin Predicted Metabolism Pathway |  | Metabolic | Prazosin / Mesoheme |
| Prednicarbate Action Pathway |  | Drug Action | Glutathione / Dinoprostone / Prednicarbate / Calcium / Prostaglandin D2 / Mesoheme / Prostaglandin G2 / Arachidonic Acid |
| Prednisolone acetate Predicted Metabolism Pathway |  | Metabolic | Mesoheme / Prednisolone acetate |
| Prednisolone Action Action Pathway New |  | Drug Action | Glutathione / Prednisolone / Dinoprostone / Calcium / Prostaglandin D2 / Mesoheme / Prostaglandin G2 / Arachidonic Acid |
| Prednisolone Action Pathway |  | Drug Action | Prednisolone |
| Prednisolone Metabolism Pathway |  | Drug Metabolism | Prednisolone |
| Prednisone Action Pathway |  | Drug Action | Prednisone / Prednisolone / Mesoheme |
| Prednisone Anti-inflammatory Action Pathway |  | Drug Action | Glutathione / Prednisone / Prednisolone / Dinoprostone / Calcium / Prostaglandin D2 / Mesoheme / Prostaglandin G2 / Arachidonic Acid |
| Prednisone Metabolism Pathway |  | Drug Metabolism | Prednisone / Prednisolone / Mesoheme |
| Prednisone Metabolism Pathway |  | Metabolic | Prednisone / Prednisolone / Mesoheme / Rilpivirine |
| Pregabalin Action Pathway |  | Drug Action | L-Glutamine / Glutamic acid / Pregabalin / Calcium |
| Pretomanid Predicted Metabolism Pathway |  | Metabolic | Mesoheme / Pretomanid |