This card is accepted at all major chain pharmacies, nationwide. Enter your name and email address to receive your free savings card. Hydroxychloroquine and phototherapy Hydroxychloroquine for crest syndrome For treatment of acute attacks of malaria in adults, one dose is usually taken right away, followed by half the dose 6 to 8 hours later and then half the dose once a day for the next 2 days. For prevention and treatment of malaria in infants and children, the amount of chloroquine phosphate is based on the child's weight. To treat malaria Chloroquine is usually given for 3 days, starting with one high dose followed by a smaller dose during the next 2 days in a row. To treat amebiasis Chloroquine is given in a high starting dose for 2 days followed by a smaller dose for 2 to 3 weeks. Overdose. Chloroquine is very dangerous in overdose. It is rapidly absorbed from the gut. In 1961, published studies showed three children who took overdoses died within 2.5 hours of taking the drug. While the amount of the overdose was not cited, the therapeutic index for chloroquine is known to be small. Chloroquine has long been used in the treatment or prevention of malaria from Plasmodium vivax, P. malariae, excluding the malaria parasite Plasmodium falciparum, for it started to develop widespread resistance to it. The usual dosage for malaria prevention in adults is 500 mg once a week. Chloroquine overdose dosage Chloroquine Dosage - Malaria Home Page, Aralen Chloroquine Side effects, Images, Uses, Dosage. Hydroxychloroquine human antichimeric antibodiesHydroxychloroquine sulfate eye side effects Both adults and children should take one dose of chloroquine per week starting at least 1 week before. traveling to the area where malaria transmission occurs. They should take one dose per week while there, and for 4 consecutive weeks after leaving. The weekly dosage for adults is 300mg base Medicines for the Prevention of Malaria While Traveling.. Chloroquine - Wikipedia. Chloroquine and Hydroxychloroquine Toxicity Practice.. Chloroquine is on the list of ‘two pills that can kill‘ toddlers. The worst case scenario is an ingestion of 310mg/15kg = ~21 mg/kg. In general 10mg/kg is considered toxic, with increasing mortality at doses 30mg/kg. Chloroquine - Get up-to-date information on Chloroquine side effects, uses, dosage, overdose, pregnancy, alcohol and more. Learn more about Chloroquine Chloroquine side effects in more detail If OVERDOSE is suspected If you think there has been an overdose, call your poison control center or get medical care right away.