It is similar to CQ in practically any way, although its similar efficacy against COVID-19 would still be an assumption. So far I have found these: There are about 10 clinical trials in China looking at hydroxychloroquine for COVID, including some comparing it with chloroquine phosphate. What does plaquenil do for autoimmune diseases Plaquenil fatigue Hydroxychloroquine pregnancy category Ic hydroxychloroquine Precautions and Warnings With Chloroquine Let your healthcare provider know if you have any medical issues, such as psoriasis, alcoholism, or kidney disease, before taking chloroquine. Precautions and warnings with this drug also apply to people who have certain allergies and women who are pregnant or breastfeeding. As HCoVs are no longer considered to be as harmless as previously assumed and as they can be associated with severe respiratory tract infections, the identification of compounds effective against these viruses is an important issue. Chloroquine is a clinically approved drug effective against malaria, and it is known to elicit antiviral effects. In vitro chloroquine and its analog hydroxychloroquine are endowed with broad‐spectrum anti‐HIV‐1 and HIV‐2 activity at clinically achievable concentrations 0–12.5 μmol/L Savarino et al. 2001a. Chloroquine also inhibits HIV‐1 in post‐integrational event by affecting newly produced viral envelope glycoproteins. You can search the Chinese clinical trial database here (type "hydroxychloroquine" into the Public Title field): HCQ prevents dengue virus infection in vitro. Don't worry, the studies are being done and the data will be out soon. Chloroquine major issue Aralen Chloroquine Uses, Dosage, Side Effects., Antiviral Activity of Chloroquine against Human Coronavirus. Chloroquine action and target Abstract. Background The American Academy of Ophthalmology recommendations on screening for chloroquine CQ and hydroxychloroquine HCQ retinopathy are revised in light of new information about the prevalence of toxicity, risk factors, fundus distribution, and effectiveness of screening tools. Recommendations on Screening for Chloroquine and.. Targeting endosomal acidification by chloroquine analogs as a.. Aralen Chloroquine Uses, Dosage, Side Effects, Interactions, Warning. The usual adult dose for treating malaria is 800 mg initially, followed by 400 mg 6-8 hours later and then 400 mg at 24 hours and 48 hours. The dose for malaria prevention is 400 mg every week starting 1 or 2 weeks before exposure and for 4 weeks after leaving the high risk area. Chloroquine is a medication used to prevent and to treat malaria in areas where malaria is known to be sensitive to its effects. Certain types of malaria, resistant strains, and complicated cases typically require different or additional medication. Occasionally it is used for amebiasis that is occurring outside the intestines, rheumatoid arthritis, and lupus erythematosus. Chloroquine is the generic form of the brand-name prescription medicine Aralen, which is used to prevent and treat malaria — a mosquito-borne disease caused by a parasite — and to treat.