Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Plaquenil 400 mg daily Plaquenil and melatonin Hydroxychloroquine sulfate has active ingredients of hydroxychloroquine sulfate. It is often used in rheumatoid arthritis. Check the latest outcomes from 12,441 Hydroxychloroquine sulfate users, or browse all drugs. Levothyroxine thyroid has active ingredients of levothyroxine sodium. It is often used in hypothyroidism. Hydroxychloroquine Interactions Avoid taking an antacid or Kaopectate kaolin-pectin within 4 hours before or after you take hydroxychloroquine. Some antacids can make it harder for your body to. This review analyzes the effectiveness and drug interactions between Meclizine hydrochloride and Levothyroxine thyroid. It is created by eHealthMe based on reports from Food and Drug Administration FDA, and is updated regularly. On eHealthMe, you can evaluate side effects and drug interactions from millions of FDA reports. 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 Hydroxychloroquine Side Effects, Dosage, Uses, and More, Hydroxychloroquine - Side Effects, Dosage, Interactions. Chloroquine plus primaquine Oral calcium lactate is predicted to decrease the absorption of levothyroxine. Manufacturer advises separate administration by at least 4 hours. Severity of interaction Levothyroxine Interactions BNF content published by NICE. Meclizine hydrochloride and Levothyroxine thyroid drug.. Levothyroxine Oral Interactions with Other Medication. A very bad and sometimes deadly reaction has happened with hydroxychloroquine. Most of the time, this reaction has signs like fever, rash, or swollen glands with problems in body organs like the liver, kidney, blood, heart, muscles and joints, or lungs. Talk 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. In children, dosage is also based on weight. Summary Drug interactions are reported among people who take Plaquenil and Levothyroxine sodium together. This study is created by eHealthMe based on reports of 462 people who take Plaquenil and Levothyroxine sodium from Food and Drug Administration FDA, and is updated regularly. eHealthMe has been monitoring drugs and supplements since 2008.