Too much calcium in your blood can weaken your bones, create kidney stones, and interfere with how your heart and brain work. Hypercalcemia is usually a result of overactive parathyroid glands. Plaquenil and yellow diarrhea Who chloroquine and flouroquinolone Are there any drug plans that pay for plaquenil Numerous conditions can cause low potassium and low calcium levels. Low levels of potassium in your blood is called hypokalemia, and low levels of calcium in your blood is called hypocalcemia. According to MedlinePlus, hypomagnesemia -- low levels of magnesium in the blood -- can be caused by numerous factors and medical conditions. If levels of calcium are low for long periods, people may develop dry scaly skin, brittle nails, and coarse hair. Muscle cramps involving the back and legs are common. Over time, hypocalcemia can affect the brain and cause neurologic or psychologic symptoms, such as confusion, memory loss, delirium, depression, and hallucinations. Plaquenil can cause serious side effects when used in high doses for chronic diseases such as RA over the long term. The New Zealand Dermatological Society recommends that to decrease the risk of retina damage, no more than 200mg of Plaquenil should be taken a day, and a dose of 400mg per day should be taken no longer than a few weeks. Other causes of hypercalcemia include cancer, certain other medical disorders, some medications, and taking too much of calcium and vitamin D supplements. These four tiny glands are situated behind the thyroid gland. Plaquenil causes lowcalcium levels Hydroxychloroquine-Induced Retinal Toxicity - American., Hypocalcemia Low Level of Calcium in the Blood. Love plaquenilPlaquenil burning eyes Hi there, I have low calcium levels as well as low vit D. They reckon it's the mtx that did it to me, even though I was eating well! I take supplements now and I'm suppose to go for a bone density scan since I've been on the supplements for over 3 months, but like most of us on this site, I've put off the scans because I've had so many medical tests for RA related issues I can't face another. Hypocalcemia? -. Long-Term Side Effects of Plaquenil for Rheumatoid.. What Does a Low White Blood Cell Count Mean.. Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Malaria is spread by mosquitoes. Plaquenil and Blood creatinine increased - a study from FDA data. Summary Blood creatinine increased is found among people who take Plaquenil, especially for people who are female, 60+ old, have been taking the drug for 1 month, also take medication Enbrel, and have Pain. This causes excessive edema and can be caused by renal insufficiency. What you are asking me about diuretics and prolonged period of diarrhea can cause dehydration which could result in low blood volume and that in itself can trigger an increased release of antidiuretic hormone ADH.