It is a Covid 19 treatment better than Remdesevir
https://www.news-medical.net/news/20201012/Suramin-shows-promise-as-COVID-19-treatment.aspx
Antiparasitic and antiviral
https://journals.asm.org/doi/full/10.1128/aac.00900-20
Treating cancer and all kinds of diseases with Suramin
Notice in the last link you provided, Suramin was being used to treat HIV and AIDS.
Magic Johnson has been living with HIV for 30 years, I wonder how he did that?
Exactly!