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. Chloroquine sulphate structure Efectos secundarios de hydroxychloroquine 200 mg Hyperprolactinemia caused by chloroquine Map of malaria regions chloroquine resistance How to use Plaquenil. Hydroxychloroquine is usually taken with food or milk to prevent stomach upset. The dosage and length of treatment are based on your medical condition and response to therapy. Hi, I JUst wanted to let you know that Plaquenil, and other lupus meds can be rough on your stomach.so in the beginning than long term. My doctor reccomended that I eat 100 calories at least prior to taking Plaquenil and Naproxen. I was prett nauseous the frist 2 weeks on these meds, but over time it diminished. In summary Plaquenil isn't causing tyour new problems. It probably caused only the nausea, diarrhea, stomach cramps, and intense vertigo. BTW 100 mg daily may reduce side effects, but this low dosage also greatly annihilates its positive effects. 100 mg are a drop maybe two. on a hot stone. And finally 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 stomach problems Plaquenil hydroxychloroquine Basics, Side Effects., Plaquenil and stomach issues." Lupus Community. What is chloroquine diphosphate Plaquenil is not effective against chloroquine or hydroxychloroquine-resistant strains of Plasmodium species see CLINICAL PHARMACOLOGY – Microbiology. Plaquenil is not recommended for the treatment of malaria acquired in geographic areas where chloroquine resistance occurs or when the Plasmodium species has not been identified. Plaquenil - FDA prescribing information, side effects and uses. Plaquenil side effects - kidney problems? - Symptoms.. Long-Term Side Effects of Plaquenil for Rheumatoid.. HI, sorry to hear about your various troubles, the drug of choice that you describe in terms of brand is Plaquenil, it seems to give less problems, “HYDROXYCHLOROQUINE SULPHATE ZENTIVA 200MG FILM COATED” and the ‘PIP number’ Product Code is 1201730. I've gradually have become sensitive to dairy but the last few days, it all but kills me. I've been on Plaquenil for almost 2 wks now and I'm also taking Prednisone, could one of these be causing my extreme stomach cramps? 2 nights ago, I had a cheeseburger and mac and cheese and I thought I was going to Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more.