Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Plaquenil increases sugar levels Chloroquine chemo Hydroxychloroquine dental side effects Plaquenil Hydroxychloroquine is used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus & others. Summary Drug interactions are reported among people who take Levothyroxine sodium and Hydroxychloroquine sulfate together. This study is created by eHealthMe based on reports of 564 people who take Levothyroxine sodium and Hydroxychloroquine sulfate from Food and Drug Administration FDA, and is updated regularly. Vitamin B-12 has not been shown to interact with Synthroid, but you should still talk to your health care provider before taking it, and there are other medication interactions that you should know about if you take Synthroid. A doctor examines a woman's thyroids in her office. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Do hydroxychloroquine and levrthryrine interact Plaquenil Oral Uses, Side Effects, Interactions., Levothyroxine sodium and Hydroxychloroquine sulfate drug. Chloroquine phosphate malariaHydroxychloroquine lupus doseHydroxychloroquine alcohol In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis. Levothyroxine Oral Route Before Using - Mayo Clinic. Does Vitamin B-12 Interfere With Synthroid Medicines.. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Some side effects of hydroxychloroquine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Serious Interactions These medications may interact and cause very harmful effects. Consult your healthcare professional e.g. doctor or pharmacist for more in formation. These medications may cause some risk when taken together. Consult your healthcare professional e.g. doctor or pharmacist for more in formation. Drug Interactions. Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary.