To explore a list of eligibility information, Search by Keyword or Browse All. Specially trained technical staff are available at each blood collection center and details of each donor’s health and activities are discussed in a confidential setting prior to blood donation. The majority of donor eligibility rules are specified by the Food and Drug Administration for every collection center in the country. Taking melatonin with hydroxychloroquine Plaquenil eye oct If you donate platelets your red cells and most of your plasma is returned to you, you may donate every 7 days, for a total of 24 times in the prior 12 months. If you donate double red cells most of your plasma is returned to you, you must wait 112 days before your next donation. If you take this drug at times other than the ones prescribed, the level of the drug in your body could increase or decrease. If it increases, you could have more side effects. If it decreases, the drug might lose its effectiveness. For treating malaria Take this medication once weekly on the same day each week. In deciding to give you Plaquenil, your doctor has weighed the risks of taking Plaquenil against the benefits it will have for you. Keep this information with the tablets. You may wish to read it. The criteria listed are provided as guidelines to assist you in determining whether you may be eligible to be a blood donor. Other rules are determined by the medical professionals at specific blood centers, or with other regulatory bodies. Donor eligibility rules are intended to protect the health and safety of the donor as well as the patient who will receive the transfusion. Can you donate blood if you take plaquenil Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses, Hydroxychloroquine Side Effects, Dosage, Uses, and More Hydroxychloroquine visionHydroxychloroquine narcotic These factors may affect how you should use this medication. Blood tests If you take this medication for a long period of time, your doctor will likely want you to have blood tests to monitor your levels of red and white blood cells. Blood sugar levels Hydroxychloroquine may cause hypoglycemia low blood sugar levels. People with diabetes. Plaquenil - Uses, Side Effects, Interactions -. Plaquenil hydroxychloroquine sulfate Drug / Medicine.. Blood Donation Eligibility Requirements Red Cross Blood.. How often can you donate blood? According to the American Red Cross’ eligibility standards, healthy people can donate whole blood every 56 days and every 7-14 days for platelets. Despite this frequency, Dr. Herron said that there is often a shortage of blood during the summer months and the time between Thanksgiving and the New Year. Low blood cell counts have happened with hydroxychloroquine. If blood cell counts get very low, this can lead to bleeding problems, infections, or anemia. Call your doctor right away if you have signs of infection like fever, chills, or sore throat; any unexplained bruising or bleeding; or if you feel very tired or weak. If you have questions about whether you can donate, please contact the blood collecting center in your community. Some cancer survivors may find these precautions frustrating. They may be eager to donate blood to help others with cancer, just as they were helped by transfusions during their treatment.