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. Hydroxychloroquine ibuprofen interaction Chloroquine otc uk Drug aralen My ENT doctor and my rheumatologist were both blissfully unaware that Plaquenil can cause tinnitus. It's something I think they should know! The leaflet also says it can cause hairloss. In my case its hasn't - but I know it could do. It can cause nausea, diahorrea and constipation and a whole host of other things. I'm very lucky. Find information about common, infrequent and rare side effects of Plaquenil Oral. She even did a pregnancy test in case that was the cause of my nausea! That made me laugh, as I have had my tubes tied, but I guess stranger things have happened. I am not convicned the rash is from the Plaquenil as she did say that it shouldn't cause hyperpigmentation, which it has slightly. 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 causes nausea Plaquenil Hydroxychloroquine - Side Effects, Dosage., Common and Rare Side Effects for Plaquenil Oral Lorazepam and hydroxychloroquineChloroquine oral pigmentationIs plaquenil an immunosuppressant drugWhat does a plaquenil rash look likeUser reviews of plaquenil You may well be having this because of the plaquenil and stopping the plaquenil is the only way to find this out. I have had to take some heavy duty antibiotics a couple of times this year and I quit taking my plaquenil at these times. My choice. I don't want to overload my liver anymore than I have to so choose to do that. So far no problems. Plaquenil, diarrhea and weight loss?. Coming Off Plaquenil questions - Sclero Forums MAIN.. Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. I had this exact issue with Plaquenil generic. I switched to brand name and it was great, no issues. It's not the active ingredient that always causes nausea, it can be the particular binding ingredients used by a certain manufacturer in the making of the pills. 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.