Methods:
In our study, we extracted the published articles systematically from PubMed, Google Scholar, and EMBASE, using terms “COVID-19”, “SARS-CoV-2”, “nCoV-19” in combination with “treatment,” “therapeutic agents,” “randomized control trials,” “pharmacology,” and “drug therapy” to find articles in which treatment and therapeutic agents against COVID 19 were discussed. All these articles were reviewed by the authors, and related articles were screened out. Out of 6288 articles searched, two authors independently excluded the articles not related to our exclusion criteria unanimously, then the articles for which they dissented whether those should be included or not, the third author was the tiebreaker, and then the screening was completed without bias. We included only clinical trial reports, in vitro studies, and review articles.