Trial test of the FDA-approved  drugs for COVID-19 patients

Nowdays, the drug repurposing has been used to identify potential drugs against coronavirus. Enormous efforts have been paid for the ability to reuse FDA approved/preclinical trial drugs for the disease. The WHO has provided the permission to doctor and scientist carry out the trial test with the combination of different FDA-approved drugs for COVID-19 treatment. In the view of urgency and current need, to reduce the cost, time and risks of the drug development process, scientists are involved in reusing already  approved drug candidates to test in COVID-19 patients