Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine: Incidence not known Some side effects of hydroxychloroquine may occur that usually do not need medical attention. Abnormal hydroxychloroquine visual fields Hydroxychloroquine 200 mg tab tablet price 90 days supply Plaquenil toxicity macula You can only donate blood 7 days after you discontinue these medications. Newer blood thinners like Fragmin, Eliquis, Pradaxa, Xarelto, and Lovenox are used in people with atrial fibrillation or those with clots in their legs deep venous thrombosis. With these drugs, you will need to wait only 2 days after your last dose to donate. I am on both, and I have been known to run out of plaquenil and missing it makes no difference to my inr. Plaq is thought to have blood thinning aspect, but I THINK that it is an antiplatelet action like aspirin rather than a anticoagulant action like coumadin. Hmm, I will watch this thread with interest to see what others have to say. Consumer information about the medication HYDROXYCHLOROQUINE - ORAL Plaquenil, includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug HYDROXYCHLOROQUINE - ORAL. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Plaquenil blood thinner Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects., Plaquenil Is Thinning My Blood Lupus Forums at The Lupus Site Plaquenil enlarged spleenPlaquenil cumulative dose toxicityWhat is the process of making chloroquine SIDE EFFECTS. The following adverse reactions have been identified during post-approval use of PLAQUENIL or other 4-aminoqunoline compounds. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. HYDROXYCHLOROQUINE - ORAL Plaquenil side effects.. Lupus Board Index is plaquenil a blood thinner. Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. 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.