Only something that worked well would be so vigorously suppressed by the mainstream media. From Paul Craig Roberts at paulcraigroberts.org:
It is a proven undeniable fact that if given early, hydroxychloroqine (HCQ) given with azithromycin and zinc will cure coronavirus. It is a proven undeniable fact that hydroxychloroquine is safe. It is an approved medicine and has been in use for 65 years with an outstanding safety record.
Hydroxychloroquine (HCQ) is under attack for two reasons. One is that Trump recommended it based on Dr. Zelenko’s successful cures of his patients in New York. Consequently, Democrats and the presstitutes have allied with Big Pharma and demonized HCQ hoping to use the false claim that it causes heart attacks to discredit Trump and reduce his chance of reelection. The other is that Big Pharma and the public health organizations, such as NIH, CDC, and WHO which have revolving door relationships with Big Pharma and share in the revenues, are desperate to block an effective and inexpensive treatment when they can make billions of dollars on a mandated vaccine and an ineffectual treatment known as Remdesivir. The Covid vaccine that is being developed perhaps also reflects a darker agenda. The vaccine alters the DNA of the person receiving it. The consequences are unknown.
Remdesivir has been allowed as a Covid treatment prior to being tested, but HCQ which has been proven safe for 65 years is prohibited in the US and most of Europe.
Doctors who are actually treating coronavirus patients take great exception to the many steps taken to prevent the use of HCQ and to prevent the public from knowing that it is a safe and effective treatment.