Drug Repurposing: a Shortcut to New Biological Entities.

Drug repurposing has proved to be an efficient alternative to drug discovery owing to the facts that it is economical and risk factors being much lower or even negligible as the drug has already been approved for having safe use in humans. The contrast of drug discovery from drug repurposing, its advantages and the challenges faced during the process are the important factors to be considered in drug repurposing. The approaches in drug discovery include three methods namely computational, biological and mixed. Moreover, the recent advancement in application of drugs for COVID-19 proved drug repurposing is a vital strategy in medical science for the upcoming years.

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