Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine: Incidence not known Some side effects of hydroxychloroquine may occur that usually do not need medical attention. How does chloroquine work on malaria Plaquenil and oral thrush What is the half life of chloroquine Find patient medical information for Chloroquine Phosphate Bulk on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Chloroquine needs to be taken 1-2 weeks before traveling to an area with malaria, compared to some alternatives that can be taken 1-2 days before. chloroquine is only effective against malaria from certain areas of the world. chloroquine may worsen psoriasis, seizures, hearing problems, and liver conditions. Side-effects which occur at doses used in the prophylaxis or treatment of malaria are generally not serious. Overdose Chloroquine is very toxic in overdosage; overdosage is extremely hazardous and difficult to treat. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Chloroquine side effects psoriasis Cyclosporine Side Effects, Dosage, Uses and More, Chloroquine Basics, Side Effects & Reviews - Hydroxychloroquine topicalExtinction coefficient chloroquine phosphate This represents a total dose of 2.5 g chloroquine phosphate or 1.5 g base in three days. The dosage for adults of low body weight and for infants and children should be determined as follows First dose 10 mg base per kg but not exceeding a single dose of 600 mg base. Aralen Chloroquine Uses, Dosage, Side Effects.. CHLOROQUINE Drug BNF content published by NICE. Chloroquine - FDA prescribing information, side effects.. Our Aralen chloroquine phosphate Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. Common side effects of Primaquine include nausea, stomach pain or upset, vomiting, loss of appetite, heartburn, and ; abdominal cramps. Tell your doctor if you have rare but very serious side effects of Primaquine including signs of serious infection such as high fever, severe chills, persistent sore throat, RARE side effects. If experienced, these tend to have a Severe expression. Abnormal Heart Electrical Signals. Abnormal Liver Function Tests. Abnormally Low Blood Pressure. Acquired Decrease Of All Cells In The Blood. Atrioventricular Heart Block. Blind Spot In The Eye.