Please review the following URL and make sure that it is spelled correctly. Hydroxychloroquine is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Plaquenil rash on hands Plaquenil and diarrhea eventually goea away These usually get better after the person adjusts to the medication, and taking the drug with food can help, as well. Additionally, some people experience anemia and vision changes or even vision loss, but this is quite rare. It’s more commonly seen with high doses for long periods, in older people, and in those who have kidney problems. Males were more likely to be in the therapeutic range than females 71% compared with 50%, p=0.050. There were significant differences by age group p=0.0018 with those under 30 years old and over 60 more likely to be in the therapeutic range. Education and family income did not distinguish any differences in hydroxychloroquine level. In rare cases, hydroxychloroquine can cause visual changes or loss of vision. Such vision problems are more likely to occur in individuals taking high doses for many years, individuals 60 years or older, or those with significant kidney disease. At the recommended dose, development of visual problems due to the medication is rare. This medicine is not effective against all strains of malaria. Malaria is common in areas such as Africa, South America, and Southern Asia. Hydroxychloroquine sulfate more likely to get sick Will you have Fainting with Hydroxychloroquine sulfate., Hydroxychloroquine Blood Levels in SLE Clarifying dosing controversies. Plaquenil and color visionChloroquin Hydroxychloroquine? CDC has no limits on the use of hydroxychloroquine for the prevention of. malaria. When hydroxychloroquine is used at higher doses for many years, a rare eye condition called retinopathy has occurred. People who take hydroxychloroquine for more than five years should get regular eye exams. Check out the CDC malaria website at Medicines for the Prevention of Malaria While Traveling.. Hydroxychloroquine Plaquenil. Hydroxychloroquine Side-effects, uses, time to work. Hydroxychloroquine is a DMARD. The brand name is Plaquenil. What does Plaquenil do? Plaquenil relieves pain and swelling and prevents damage to joints. How long does Plaquenil take to work? Plaquenil works very slowly. In 1 to 3 months you should start to feel better. You may continue to get better for up to 1 year. Malaria is more likely to cause death in a pregnant woman. If you are pregnant, talk with your doctor about the risks of traveling to areas where malaria is common. It is not known whether hydroxychloroquine passes into breast milk or if it could harm a nursing baby. May 07, 2012 Saturday was a week since I stopped taking Plaquenil, aka Hydroxychloroquine, per my doctor's instructions, and I think I am going through some form of withdrawal. I took the drug as a treatment for sarcoidosis and one of the side effects is a reduction in white blood cells, which is what has happened to me.