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. Ocular side effects from plaquenil What is a potential adverse effect of hydroxychloroquine plaquenil Hydroxychloroquine sudden neck stiff neck pain What can plaquenil do to you if taken wrong Side Effects Nausea, stomach cramps, loss of appetite, diarrhea, dizziness, or headache may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Remember. Plaquenil Side Effects by Likelihood and Severity INFREQUENT side effects. If experienced, these tend to have a Severe expression. Weight Loss; Full Drug Information. Based on this information, possible bothersome but usually not dangerous side effects of Plaquenil may include Nausea and vomiting. Diarrhea and abdominal pain. Headaches. Dizziness or a spinning sensation vertigo. Ringing in the ears tinnitus. Loss of appetite. Nightmares. 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 side effects weight loss Plaquenil & weight loss Lupus Forums at The Lupus Site, Common and Rare Side Effects for Plaquenil Oral Nifedipine and hydroxy chloroquineHydroxychloroquine pregnancy categoryPlaquenil and early pregnancyPlaquenil and ibuprofen I have been on plaquenil for many a year, and it has not affected my weight at all. If you go to or rxlist.com, neither of them list weight gain as a side effect, while they both list "nausea, vomiting, stomach pain; loss of appetite, weight loss" as side effects. Weight gain while on Plaquenil? lupus. Plaquenil Side Effects - Antibiotics Home Page. Plaquenil Side Effects on Your Eyes and Vision. Common side effects Nausea and diarrhea This can often can be combatted by taking Plaquenil with food or milk. Dizziness Precautions with this side effect Do not drive, use machinery. Cramps. Headache. Dry skin. Loss of appetite. Yes, Plaquenil causes both weight loss and loss of appetite. Hence, if the loss of appetite and weight loss started after you started on this drug, then yes, it could be due to Plaquenil. However, if you had loss of appetite and weight loss before your started this drug, then the drug can aggravate the process. Feb 19, 2020 You may report side effects to FDA at 1-800-FDA-1088. What is the most important information I should know about hydroxychloroquine Plaquenil, Plaquenil Sulfate, Quineprox? Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye.