Pharmacology is that the science of the medicine system. It includes the data of history, source, organic chemistry and physiological result, mechanism of action and therapeutic uses of drug. This means, it's connected with the interaction of the drug with biological system. The final medical specialty is involves the aspects of sources of medication, route of administration of medication, absorption of medication and factors poignant them, distribution, bio-transformation and excretion. It conjointly involves the mechanism by that drug is acting with receptor, toxicity of drug and diagnosis & clinical analysis. Citations are important for a journal to get impact factor. Impact factor is a measure reflecting the average number of citations to recent articles published in the journal. The impact of the journal is influenced by impact factor, the journals with high impact factor are considered more important than those with lower ones. To increase the visibility and ease of use of open access scientific and scholarly journals PrimeOA Publications top online publishing journals are indexed in different indexing and archiving services.