| Paliperidon (9-Hydroxy-Risperidon) | Zentrallabor LKH | |
| Paroxetin | Zentrallabor LKH | |
| Perampanel | Zentrallabor LKH | |
| Perazin | Zentrallabor LKH | |
| Perphenazin | Zentrallabor LKH | |
| Phenobarbital | Zentrallabor LKH | |
| Phenobarbital (CDK) | Zentrallabor CDK | |
| Phenylethylmalonamid (PEMA) | Zentrallabor LKH | |
| Phenytoin | Zentrallabor LKH | |
| Phenytoin (CDK) | Zentrallabor CDK | |
| Pimozid | Zentrallabor LKH | |
| Posaconazol | Zentrallabor LKH | |
| Pregabalin | Zentrallabor LKH | |
| Primidon | Zentrallabor LKH | |
| Promethazin | Zentrallabor LKH | |
| Prothipendyl | Zentrallabor LKH | |
| Prothrombingehalt (PZ, PTZ, Quick) | Zentrallabor LKH | |
| Prothrombingehalt (PZ, PTZ, Quick) (CDK) | Zentrallabor CDK | |
| Prothrombinzeit-INR (PZ-INR) aus Kapillarblut | Zentrallabor LKH | |
| Prothrombinzeit-INR (PZ-INR) venös | Zentrallabor LKH | |