Hydroxychloroquine precursor quinine has been used as medicine since the 1630s

(Natural News) When experts point out that hydroxychloroquine has been used safely for many years, they’re not exaggerating. Since it was first developed in 1950, it has been safely used by countless people to treat malaria, lupus, and rheumatoid arthritis. But its precursor, quinine, goes back even further. In fact, it was first used by...

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