1. participating in another rct in the past 12 months; 2. known allergy to nitazoxanide 3. severely reduced lv function; 4. severely reduced renal function; 5. pregnancy or breast feeding; 6. use of hydroxychloroquine and/or azithromycin in the past 15 days; 7. any other clinical condition which, in the opinion of the principal investigator, would not allow safe completion of the protocol and safe administration of the investigational products

1. participating in another rct in the past 12 months; 2. known allergy to nitazoxanide 3. severely reduced lv function; 4. severely reduced renal function; 5. pregnancy or breast feeding; 6. use of hydroxychloroquine and/or azithromycin in the past 15 days; 7. any other clinical condition which, in the opinion of the principal investigator, would not allow safe completion of the protocol and safe administration of the investigational products

participating in another rct in the past 12 months; known allergy to nitazoxanide severely reduced lv function; severely reduced renal function; pregnancy or breast feeding; use of hydroxychloroquine and/or azithromycin in the past 15 days; any other clinical condition which, in the opinion of the principal investigator, would not allow safe completion of the protocol and safe administration of the investigational products

participating in another rct in the past 12 months; known allergy to nitazoxanide severely reduced lv function; severely reduced renal function; pregnancy or breast feeding; use of hydroxychloroquine and/or azithromycin in the past 15 days; any other clinical condition which, in the opinion of the principal investigator, would not allow safe completion of the protocol and safe administration of the investigational products

1. participating in another rct in the past 12 months; 2. known allergy to nitazoxanide 3. severely reduced lv function; 4. severely reduced renal function; 5. pregnancy or breast feeding; 6. use of hydroxychloroquine and/or azithromycin in the past 15 days; 7. any other clinical condition which, in the opinion of the principal investigator, would not allow safe completion of the protocol and safe administration of the investigational products

1. participating in another rct in the past 12 months; 2. known allergy to nitazoxanide 3. severely reduced lv function; 4. severely reduced renal function; 5. pregnancy or breast feeding; 6. use of hydroxychloroquine and/or azithromycin in the past 15 days; 7. any other clinical condition which, in the opinion of the principal investigator, would not allow safe completion of the protocol and safe administration of the investigational products