The disease is that the enemy of humans, which affects half or all an organism. Efforts to cure or improve the health condition against unwellness lead an interesting improvement within the field of the pharmaceutical companies. Pharmaceutical science is a wide range of combinations of scientific disciplines that contribute to the discovery and development of new drugs and pharmacotherapies. Advancements within the branches of pharmaceutical sciences enhance the event of recent reliable pharma entities. Every facet of pharmaceutical science deals with the look, action, delivery, and disposition of drugs. The Economist Intelligence Unit (EIU) reports that health care spending in the 60 countries that it covers rose by 2.6 percent in nominal U.S. dollar terms in 2014. Global health care spending is expected to increase by an average of 4.3 percent in 2015-2019. And the Size of the pharmaceutical company market in the EU set to grow by twenty sevenths between 2015- & 2022.

Generally, pharmaceutical microbiology provides knowledge and understanding with regards to the significance of the presence of bacteria, yeasts, moulds, viruses and toxins in pharmaceutical raw materials, intermediates, products and pharmaceutical production environments, as well as the microbiological control of pharmaceutical products, production environments and people. One of the key objectives of pharmaceutical microbiology is to ensure safety and efficacy of pharmaceutical products. It embraces the processes like the validation of disinfectants, evaluation of the efficacy of disinfectants in suspension, on surfaces, and through field trials. Pharmaceutical microbiology offers protocols and techniques associated with the operation and assurance of clean-room, aseptic-room and controlled environments for preventing any possible microbial contamination, and introduces risk assessment and practical contamination control strategies

Pharmacoepidemiology is the study of the uses and effects of drugs in well-defined populations.To accomplish this study, pharmacoepidemiology borrows from both pharmacology and epidemiology. Thus, pharmacoepidemiology is the bridge between both pharmacology and epidemiology.Pharmacoepidemiology benefits from the methodology developed in general epidemiology and may further develop them for applications of methodology unique to needs of pharmacoepidemiology. There are also some areas that are altogether unique to pharmacoepidemiology, e.g., pharmacovigilance. Pharmacovigilance is a type of continual monitoring of unwanted effects and other safety-related aspects of drugs that are already placed in current growing integrating markets. In practice, pharmacovigilance refers almost exclusively to spontaneous reporting systems which allow health care professionals and others to report adverse drug reactions to the central agency. The central agency combines reports from many sources to produce a more informative profile for drug products than could be done based on reports from fewer health care professionals.

Pharmacogenetics typically alludes to what variety in one single quality means for the reaction to a solitary medication. Pharmacogenomics is a more extensive term, which concentrates on how the entirety of the qualities (the genome) can impact reactions to drugs. Pharmacogenomics aims to develop rational means to optimize drug therapy, with respect to the patients' genotype, to ensure maximum efficiency with minimal adverse effects. Through the utilization of pharmacogenomics, it is hoped that pharmaceutical drug treatments can deviate from what is dubbed as the "one-dose-fits-all" approach. Pharmacogenomics also attempts to eliminate the trial-and-error method of prescribing, allowing physicians to take into consideration their patient's genes, the functionality of these genes, and how this may affect the efficacy of the patient's current or future treatments (and where applicable, provide an explanation for the failure of past treatments). Such approaches promise the advent of precision medicine and even personalized medicine, in which drugs and drug combinations are optimized for narrow subsets of patients or even for each individual's unique genetic makeup reactions (ADRs).

Nano Pharmaceuticals offer the ability to detect diseases at much earlier stages and the diagnostic applications could build upon conventional procedures using nanoparticles. Nano Pharmaceuticals represent an emerging field where the sizes of the drug particle or a therapeutic delivery system work at the Nanoscale. In the Pharmaceutical industry, a long-standing issue is the difficulty of delivering the appropriate dose of a particular active agent to a specific disease site. Nano Pharmaceuticals have enormous potential in addressing this failure of traditional therapeutics which offers site-specific targeting of active agents. Such precision targeting via Nano Pharmaceuticals reduces toxic systemic side effects, resulting in better patient compliance. In today's world economy, the Pharmaceutical industry faces enormous pressure to deliver high-quality products to patients while maintaining profitability. Therefore Pharmaceutical companies are applying nanotechnology to enhance or supplement drug target discovery and drug delivery. Nano Pharmaceutical reduces the cost of drug discovery, design & development and enhances the drug delivery process.

Pharmacovigilance is also known as drug safety, is the pharmacological science relating to the collection, detection, assessment, monitoring, and prevention of adverse effects with pharmaceutical products. The etymological roots for the word "pharmacovigilance" are pharmacon (Greek for drug) and vigilare (Latin for to keep watch). As such, pharmacovigilance heavily focuses on adverse drug reactions, or ADRs, which are defined as any response to a drug that is noxious and unintended, including lack of efficacy (the condition that this definition only applies with the doses normally used for the prophylaxis, diagnosis or therapy of disease, or for the modification of physiological disorder function was excluded with the latest amendment of the applicable legislation). Medication errors such as overdose, and misuse and abuse of a drug as well as drug exposure during pregnancy and breastfeeding, are also of interest, even without an adverse event, because they may result in an adverse drug reaction.