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. Hydroxychloroquine ms Plasmodium falciparum chloroquine resistance first seen Co-administration of chloroquine and mefloquine may increase the risk of convulsions. The blood concentrations of chloroquine and desethylchloroquine the major metabolite of chloroquine, which also has antimalarial properties were negatively associated with log antibody titers. Chloroquine is a 9-aminoquinoline known since 1934. Apart from its well-known antimalarial effects, the drug has interesting biochemical properties that might be applied against some viral infections. Chloroquine exerts direct antiviral effects, inhibiting pH-dependent steps of the replication of several viruses including members of the flaviviruses, retroviruses, and coronaviruses. Its best. A severe eye problem has happened with chloroquine. This may lead to lasting eyesight problems. The risk may be higher if you have some types of eye or kidney problems. The risk may also be higher with some doses of chloroquine, if you use chloroquine for longer than 5 years, or if you take certain other drugs like tamoxifen. 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 Hydroxychloroquine DermNet NZ, Effects of chloroquine on viral infections an old drug against today's. Hydroxychloroquine porphyria cutanea tardaCan a person eat grapefruit when taking the drug hydroxychloroquineWhite oval pill plaquenilPlaquenil and mouth soresPlaquenil standard of care optometry 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.. Chloroquine Indications, Side Effects, Warnings -. Chloroquine - Wikipedia. Both chloroquine and hydroxychloroquine are used off-label for rheumatoid arthritis and for lupus, but how they work in these areas is another shoulder-shrugger, and there are side effects in the eye. It’s been suggested as an adjunct in some cancer therapy regimes, but there are problems there, too, in the kidney. The excretion of Chloroquine and the major metabolite, desethylChloroquine, in breast milk wasinvestigated in eleven lactating mothers following a single oral dose of Chloroquine 600 mg base. The maximum daily dose of the drug that the infant can receive from breastfeeding was about 0.7% of the maternal start dose of the drug in malaria. 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.