Pharmaceutical preparations, in the form of pills and liquid oral spray, for killing viruses, bacteria, coronaviruses including COVID-19, biofilms, fungi, mold, and spores, and for the treatment and prevention of diabetes; pharmaceutical preparations, namely, anti-infectives for use in or as chemotherapeutics; pharmaceutical preparations for the treatment of viral diseases for use in or as chemotherapeutics; disinfectants; sanitizing preparations for household, commercial, and hospital use; all purpose disinfectants for killing viruses, bacteria, coronaviruses including COVID-19, biofilms, fungi, mold, and spores.