This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information. For prevention of malaria in adults, one dose is usually taken once a week on exactly the same day of the week. Vision loss from plaquenil Chloroquine phosphate for ich When side effects do occur, they are usually minor. A 2019 review of ACE inhibitors describes some of the more common side effects of ACE inhibitors. The table below outlines these side effects. Some side effects of chloroquine 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. Common side effects include Irreversible damage to the retina. Deafness. Tinnitus ringing in the ears. Reduced hearing. Increased liver enzymes. Anorexia. Nausea. Vomiting. Diarrhea. One dose is taken beginning 2 weeks before traveling to an area where malaria is common, while you are in the area, and then for 8 weeks after you return from the area. Your doctor will tell you how many tablets to take for each dose. H-chloroquine side effects Chloroquine MedlinePlus Drug Information, Chloroquine Side Effects Common, Severe, Long Term - How fast does plaquenil workPlaquenil and atorvastatinChloroquine et grossesse Some side effects of metformin 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. Metformin Side Effects Common, Severe, Long Term -. Aralen chloroquine Malaria Drug Side Effects & Dosage. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Common side effects include vomiting, headache, changes in vision and muscle weakness. Severe side effects may include allergic reactions. It does not appear to be safe during pregnancy. Hydroxychloroquine is in the antimalarial and 4-aminoquinoline families of medication. Standard treatment for autoimmune hepatitis AIH consists of prednisolone and azathioprine. However, alternative therapy is required for non‐ or partial responders and in cases of side effects. The aim of this study was to evaluate the treatment outcomes associated with chloroquine plus prednisone in AIH patients. Plaquenil is the brand name of hydroxychloroquine, a drug used to prevent or treat malaria. Plaquenil can cause serious side effects when used in high doses for chronic diseases such as RA over the long term.