Azithromycin is known to cause issues for people with certain heart conditions. Alternatives to HCQ/Azithromycin are needed for these people.
An apparently far better substitute for those with certain heart issues is the antibiotic Doxycycline.
The Azithromycin is added to keep side infections down due to the compromised immune system. It is not actually needed to kill the virus. To those with heart issues simply skip it. The heart dies anyway if the virus kills the patient.
It is the zinc that is the active anti viral the HCQ 8a just the carrier into the cells. HCQ and zinc alone is just as effective against the virus.
Alternatives to HCQ/Azithromycin are needed...
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I have read of substituting doxyxycline. All I have read is that doxy stops bacterial replication. Also, mega doses of Vit. C ‘to bowel tolerance’ is being used.