It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Malaria is spread by mosquitoes, which transmit the parasites that cause the infection, usually in tropical and subtropical parts of the world. O hydroxychloroquine Plaquenil and lasik Does Plaquenil Interact with other Medications? Severe Interactions. These medications are not usually taken together. Consult your healthcare professional e.g. doctor or pharmacist for more in. Usual Adult Dose for Amebiasis 1 g chloroquine phosphate 600 mg base orally once a day for 2 days, followed by 500 mg chloroquine phosphate 300 mg base orally once a day for at least 2 to 3 weeks 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. For example, it may be combined with an antibiotic to treat chronic Q-fever, which humans usually catch from farm animals or raw milk. Plaquenil is used to treat other types of infections too. Plaquenil dosages Plaquenil Oral Uses, Side Effects, Interactions, Pictures., Chloroquine Dosage Guide with Precautions - Hydroxychloroquine olecranon bursitisPlaquenil usual dosageAustralian rheumatology association plaquenil Hydroxychloroquine may cause some people to be agitated, irritable, or display other abnormal behaviors. It may also cause some people to have suicidal thoughts and tendencies, or to become more depressed. If you or your caregiver notice any of these side effects, tell your doctor right away. This medicine may cause hypoglycemia low blood sugar. Hydroxychloroquine Oral Route Precautions - Mayo Clinic. Hydroxychloroquine Oral Uses, Side Effects, Interactions.. Hydroxychloroquine Dosage Guide with Precautions -. Feb 19, 2020 Rheumatoid Arthritis. 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. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is. Generally, hydroxychloroquine is given in 200 mg or 400 mg doses, once per day. Higher doses can sometimes be used, but only in adults and not for all cases.