From a medico-legal/forensic science standpoint (mine), pharmacology, pharmaceutical science and toxicology all explain the relationship between various substances and the human body. The pharmacology folks can explain drug composition, effects, therapeutic vs. toxic dosages, and the kinetic mechanisms by which drugs are absorbed, transported, distributed and eliminated in/from a living organism. Toxicologists can do the same, but with more substances. Drug interactions are also relevant in forensic science. Many drug analysts falsely bill themselves as toxicologists--that name requires an advanced degree in toxicology, just as pharmacists aren't pharmacologists. Forensic science has a very robust relationship with pharmaceutical sciences and toxicology.

To enhance the knowledge of Forensic Medicine,study in Pharmaceutical Science in depth is beneficial.Because when your knowledge of your subject of Pharmaceutical Science will be applied in disbursement of justice and will help any investigating agency to come into inferences of any dispute interlinked with jurisprudence either in living or dead; then study subject will be intermingled with Forensic Medicine. This is the basic thing, for details more discussion is required.