Disclaimer I do not have medical training.

Articles on Camostat and Bromhexine hydrocloride in regards to Covid 19

Repurposing host-based therapeutics to control coronavirus and influenza virus

https://www.sciencedirect.com/science/article/pii/S1359644618303805

SARS-CoV-2 Cell Entry Depends on ACE2 and TMPRSS2 and Is Blocked by a Clinically Proven Protease Inhibitor

https://www.ncbi.nlm.nih.gov/pubmed/32142651?dopt=Abstract

The Impact of Camostat Mesilate on COVID-19 Infection (CamoCO-19)

https://clinicaltrials.gov/ct2/show/NCT04321096

COVID-19 Registered Trials – and analysis

https://www.cebm.net/covid-19/registered-trials-and-analysis/

A reappraisal of the mucoactive activityand clinical efficacy of bromhexine

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5359817/pdf/40248_2017_Article_88.pdf