Works for some cases yes. Often? Don’t think so.
BEIJING, Feb. 17 (Xinhua) – Chinese experts, based on the result of clinical trials, have confirmed that Chloroquine Phosphate, an antimalarial drug, has a certain curative effect on the novel coronavirus disease (COVID-19), a Chinese official said here Monday.
Antimalarial drug confirmed effective on COVID-19 - Xinhua | English.news.cn
Btw, this topic is moved.