Check with your doctor immediately if blurred vision, difficulty with reading, or any other change in vision occurs during or after treatment. Your doctor may want your eyes be checked by an ophthalmologist (eye doctor). How is hydroxychloroquine side effects Plaquenil vector Plaquenil 200 mg reviews These may occur for the first few days a person takes the drug while the body adjusts to the medication. Loss of appetite, tiredness, weakness, or headache are uncommon side effects and typically go away over time. Rare complications. The greatest concern people have when taking hydroxychloroquine is related to vision. What is the dosage for hydroxychloroquine Plaquenil? The usual adult dose for treating malaria is 800 mg initially, followed by 400 mg 6-8 hours later and then 400 mg at 24 hours and 48 hours. The dose for malaria prevention is 400 mg every week starting 1 or 2 weeks before exposure and for 4 weeks after leaving the high risk area. Like the others have said it's best not to take meds prescribed for reflux, such as Omeprazole or Lanzoprazole, at the same time as Plaquenil as they can make it less effective. I need to leave at least a couple of hours between my morning Lanzoprazole and my first dose of Plaquenil otherwise I feel sick. You might feel dizzy or faint, or you might have a fast, pounding, or uneven heartbeat. Contact your doctor right away if you have any changes to your heart rhythm. When is the best time to take hydroxychloroquine Hydroxychloroquine Rheumatology, Hydroxychloroquine Plaquenil Side Effects & Dosage for. Chloroquine-resistant malaria may be treated with quizletIncidence of plaquenil retinopathy Re best time to take plaquenil. You take plaquenil twice a day, approximately 12 hours apart. The most common side effect is mild nausea and occasional stomach cramps. You can take it with food if it upsets your stomach. You should also have a complete eye exam before starting this medication and then every 6 months. Best time to take plaquenil - HealthBoards. When best time of day to take plaquenil? - LUPUS UK. Hydroxychloroquine Side Effects, Dosage, Uses, and More. The action of hydroxychloroquine is cumulative and may require weeks to months to achieve the maximum therapeutic effect see CLINICAL PHARMACOLOGY. Initial adult dosage 400 mg to 600 mg 310 to 465 mg base daily, administered as a single daily dose or in two divided doses. It may take several weeks or months to see improvement if you are taking this for lupus or arthritis. Hydroxychloroquine may not prevent malaria in all cases. It is recommended one tablet twice daily if taking more than one tablet. It is recommended to be taken with food. Symptoms can start to improve in one to two months, but it may take up to six months before the full benefits of this medication are experienced.