Zinc picolinate and zinc sulfate can help when you need to boost your intake. Both forms...
healthyeating.sfgate.com
Nothing in the description you posted Maldorf lists that particular zinc supplements
"elemental" zinc %. Read the above article.
Ask yourself, why does the drug cocktail call for such a large dose of zinc in the first place...220mg/day?
That's a whopping dose of zinc right? How else are you going to replicate 220mg of zinc if you can't find zinc sulfate at 220mg/tab?
It's important to remember that this regimen of Hydroxycloriquine, Azithromycin & zinc is for only 5-6 days. We're not
talking weeks on end so for such a short duration I don't think taking a copper supplement would be necessary.