Although their therapeutic and toxic doses differ, they are related drugs with similar clinical indications for use and similar manifestations of retinal toxicity. The image below depicts hydroxychloroquine retinopathy. Fluorescein angiogram of left macula in patient with hydroxychloroquine retinopathy. Plaquenil dosage per weight Plaquenil and chronic fatigue syndrome Summary Chloroquine is an anti-malarial drug available at pharmacies for people traveling to area with malaria risks. Note based on a RGCC chemosensitivity analysis I have seen at a German clinic, Hydroxychloroquine has been effective in killing the cancer cells of 5 out 7 patients that were tested. It is one of very few available drugsContinue reading Chloroquine & Hydroxychloroquine. I did do some research to decide if I should take plaquenil or not and found it to be in a group of antimalaria drugs and considered separate from the flouroquinolones. But, I'm going to double check now. I just checked on the web again and plaquenil is a chloroquine, not a quinolone. Rarely it can cause damage to vision by destroying the retina. Chloroquine and hydroxychloroquine belong to the quinolone family. Although their therapeutic and toxic doses differ, they are related drugs with similar clinical indications for use and similar manifestations of retinal toxicity. The image below depicts hydroxychloroquine retinopathy. Retinopathy may be asymptomatic or may cause central or paracentral scotomas leading to difficulty reading or performing fine visual tasks (due to parafoveal metamorphopsia). Reprinted from American Journal of Ophthalmology, Vol 104, Johnson and Vine, Hydroxychloroquine therapy in massive total doses without retinal toxicity, pages 139-144, Copyright 1987, with permission from Elsevier Science. Is quinolone related to plaquenil Plaquenil weakness - Road Back Foundation, Fluoroquinolone Antibiotics Cipro, Levaquin, Avelox. When was chloroquin discoveredCan you get pregnant on plaquenilPlaquenil and intestinal problemsMethotrexate and plaquenil for rheumatoid arthritis Plaquenil hydroxychloroquine belongs to a group of medicines called quinolines. Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. Plaquenil Uses, Dosage & Side Effects -. Chloroquine and Hydroxychloroquine Toxicity Practice.. Hydroxychloroquine - Wikipedia. Cross‐reactivity between quinolones in uncertain. Recently, we studied three patients who had developed suspected allergic reaction to a quinolone. For all of them we performed skin test, histamine release test, RAST, and oral provocation with the suspected quinolone and also with another quinolone of the opposite generation. Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of hydroxychloroquine in the elderly. However, elderly patients are more likely to have age-related kidney problems, which may require caution and an adjustment in the dose for patients receiving this medicine. Breastfeeding Find information about common, infrequent and rare side effects of Plaquenil Oral.