Severe acute respiratory syndrome- Coronavirus 2 (SARS-CoV2) has presented an unprecedented challenge of finding therapeutic agents. Presently hydroxychloroquine (HCQ), lopinavir-ritonavir combination (LR), remdesivir, and favipiravir are candidate medications. Patients with substance use disorder (SUD) are especially susceptible to develop COVID-19 owing to underlying comorbidities, immune-suppression, and socioeconomic circumstances of drug use [1]. Moreover, the SARS-CoV2 pandemic has met with a pre-existing epidemic of Opioid use disorders. Given the susceptibility and magnitude of both the conditions, co-occurrence seems to be commonplace. Therefore, exploring the effects of candidate medications (for SARS-CoV2) among patients with SUD warrant clinical attention....