inclusion criteria: * able to provide written informed consent prior to initiation of any study procedures. * understands and agrees to comply with planned study procedures including self testing of blood pressure daily * male or non-pregnant female adult ≥18 years of age at time of enrolment. * has laboratory-confirmed severe acute respiratory syndrome corona virus 2 (sars-cov-2) infection as determined by fda-approved commercial or public health assay in any specimen collected ideally \< 72 hours prior to randomization. exceptions to the \<72 hr inclusion criteria may be made at the discretion of the investigator. * positive for covid-19 symptoms: fever defined as a temperature of \>100.4 on study screening or self-report of daily fever at home or shortness of breath of any degree or fatigue causing greater than minimal interference with usual social \& functional activities * women of childbearing potential must agree to use at least one primary form of contraception for the duration of the study * able to easily swallow pills

inclusion criteria: * able to provide written informed consent prior to initiation of any study procedures. * understands and agrees to comply with planned study procedures including self testing of blood pressure daily * male or non-pregnant female adult ≥18 years of age at time of enrolment. * has laboratory-confirmed severe acute respiratory syndrome corona virus 2 (sars-cov-2) infection as determined by fda-approved commercial or public health assay in any specimen collected ideally \< 72 hours prior to randomization. exceptions to the \<72 hr inclusion criteria may be made at the discretion of the investigator. * positive for covid-19 symptoms: fever defined as a temperature of \>100.4 on study screening or self-report of daily fever at home or shortness of breath of any degree or fatigue causing greater than minimal interference with usual social \& functional activities * women of childbearing potential must agree to use at least one primary form of contraception for the duration of the study * able to easily swallow pills

inclusion criteria: - able to provide written informed consent prior to initiation of any study procedures. - understands and agrees to comply with planned study procedures including self testing of blood pressure daily - male or non-pregnant female adult ≥18 years of age at time of enrolment. - has laboratory-confirmed severe acute respiratory syndrome corona virus 2 (sars-cov-2) infection as determined by fda-approved commercial or public health assay in any specimen collected ideally < 72 hours prior to randomization. exceptions to the <72 hr inclusion criteria may be made at the discretion of the investigator. - positive for covid-19 symptoms: fever defined as a temperature of >100.4 on study screening or self-report of daily fever at home or shortness of breath of any degree or fatigue causing greater than minimal interference with usual social & functional activities - women of childbearing potential must agree to use at least one primary form of contraception for the duration of the study - able to easily swallow pills

inclusion criteria: - able to provide written informed consent prior to initiation of any study procedures. - understands and agrees to comply with planned study procedures including self testing of blood pressure daily - male or non-pregnant female adult ≥18 years of age at time of enrolment. - has laboratory-confirmed severe acute respiratory syndrome corona virus 2 (sars-cov-2) infection as determined by fda-approved commercial or public health assay in any specimen collected ideally < 72 hours prior to randomization. exceptions to the <72 hr inclusion criteria may be made at the discretion of the investigator. - positive for covid-19 symptoms: fever defined as a temperature of >100.4 on study screening or self-report of daily fever at home or shortness of breath of any degree or fatigue causing greater than minimal interference with usual social & functional activities - women of childbearing potential must agree to use at least one primary form of contraception for the duration of the study - able to easily swallow pills