It is a rapidly acting drug, targeting the asexual stage. The mortality rate has increased along with the spread of malaria. p H of food vacuole of plasmodium specie is acidic while chloroquine is a weak base, leading to change in p H of food vacuole. More effective for long term treatment of rheumatoid arthritis as devoid of long term adverse drug reactions, especially eye changes. Use of chloroquine is declining recently due to the fact that most strains have become resistant. It rapidly enters and gets concentrated in food vacuole, present within erythrocytes. If we want to avoid relapse, Primaquine is used to eradicate tissue schizontal activity. Previously used for chemoprophylaxis, now due to development of resistance, chloroquine is not used. Anti-amoebic effect –infection caused by Entamoeba histolytica) Amebic liver abscess (as chloroquine is concentrated in the liver) because: Used for long time for rheumatoid arthritis, but because of associated ocular adverse effects, precaution is taken to have eye examination every 4 to 6 month to check retinal changes. Plaquenil and ibd Withdrawal effects of plaquenil Does hydroxychloroquine cause proteinuria Hydroxychloroquine treats what infx Chloroquine inhibits the action of heme polymerase, which causes the buildup of toxic heme in Plasmodium species. 11 It has a long duration of action as the half life is 20-60 days. 10 Patients should be counselled regarding the risk of retinopathy with long term usage or high dosage, muscle weakness, and toxicity in children. 18. Mechanism of action Chloroquine has been sporadically used in treating SARS-CoV-2 infection. Hydroxychloroquine shares the same mechanism of action as chloroquine, but its more tolerable safety profile makes it the preferred drug to treat malaria and autoimmune conditions. Antiprotozoal-Malaria /Mechanism of action/ may be based on ability of chloroquine to bind and alter the properties of DNA. Chloroquine also is taken up into the acidic food vacuoles of the parasite in the erythrocyte. Plasmodium develops, multiplies and transforms by utilizing hemoglobin of human erythrocytes. Inhibits phospholipase A2 (used rheumatoid arthritis), chemotaxis is decreased, resulting in decreased proliferation of antigen. Primarily highly effective against febrile illness, relief is quickly achieved within 24 hours. CRTF Another gene involved is chloroquine resistance transporter factor (CRTF) 4. When administered, patient becomes afebrile within 24-48 hours. Resistance has developed in Afghanistan and Khyber Pathtunkhua. Chloroquine mode of action Aralen Chloroquine Uses, Dosage, Side Effects., In Vitro Antiviral Activity and Projection of Optimized. Chloroquine reduce cell viabilityHydroxychloroquine adderall interactionPlaquenil eye exam same as regular eye examPlaquenil sunburntHydroxychloroquine serious side effects Chloroquine is used to prevent or treat malaria caused by mosquito bites in countries where malaria is common. Malaria parasites can enter the body through these mosquito bites, and then live in body tissues such as red blood cells or the liver. Chloroquine Oral Uses, Side Effects, Interactions, Pictures.. Chloroquine C18H26ClN3 - PubChem. Chloroquine and hydroxychloroquine – Knowledge for medical.. Onset of Action for Chloroquine 2 - 3 days Duration of Action for Chloroquine 7 days Half Life of Chloroquine 3 - 10 days Side Effects of Chloroquine 1. Nausea 2. Vomiting 3. Diarrhoea 4. Abdominal cramps 5. Pruritis 6. Headache 7. Dizziness 8. Hypotension 9. Visual disturbances Contra-indications of Chloroquine 1. Hypersensitivity to Chloroquine and other 4 Amino quinolines 2. Porphyria A severe eye problem has happened with chloroquine. This may lead to lasting eyesight problems. The risk may be higher if you have some types of eye or kidney problems. The risk may also be higher with some doses of chloroquine, if you use chloroquine for longer than 5 years, or if you take certain other drugs like tamoxifen. Mechanism of Action Chloroquine, a 4-aminoquinoline, is an anti-protozoal agent. The precise mechanism by which Chloroquine exhibits activity is not known. Chloroquine, may exert its effect against Plasmodium species by concentrating in the acid vesicles of the parasite and by inhibiting polymerization of heme. It can also inhibit certain enzymes by its interaction with DNA.