Chloroquine mode of action

Discussion in 'North West Pharmacy Canada' started by iamsole, 29-Feb-2020.

  1. Keysee Moderator

    Chloroquine mode of action


    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.

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    Chloroquine works best when you take it on a regular schedule. For example, if you are taking it once a week to prevent malaria, it is best to take it on the same day of each week. Make sure that you do not miss any doses. If you have any questions about this, check with your doctor. This finding, obtained without making any assumption on the nature of PfCRT, implies that hypothesis H2 is plausible, regardless of the chloroquine species involved in the chloroquineHM binding and of the mechanism of action of the mutated PfCRT. Consequently, none of the 20 cells C 1–5,1–4 can be shaded at this stage. 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.

    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

    Chloroquine Mechanism of drug action and resistance in., On the Mechanism of Chloroquine Resistance in Plasmodium.

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  7. Mechanism of Action Chloroquine is an antimalarial agent. While the drug can inhibit certain enzymes, its effect is believed to result, at least in part, from its interaction with DNA.

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    Inhibition of DNA replication is proposed as a general mechanism of the antimicrobial action of chloroquine. The drug chloroquine is bactericidal for Bacillus megaterium ; it inhibits DNA and RNA biosynthesis and produces rapid degradation of ribosomes and dissimilation of ribosomal RNA. An important mode of action of chloroquine and hydroxychloroquine is the interference of lysosomal activity and autophagy. 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.

     
  8. berk Well-Known Member

    Common side effects of Imuran include: infection, leukopenia, and vomiting. Lupus and Hearing Loss" Lupus Community - Support Group Treatmenmt for Lupus-Plaquenil and Imuran Psoriasis Associated with Plaquenil Hydroxychloroquine - Dr Camisa's.
     
  9. X_E_K Guest

    Plaquenil & Weight Gain/Loss - The plaquenil has caused a weight gain of about 20-25 pounds for me. Since I was diagnosed with MCTD a year ago, Plaquenil has been the only medication besides eye supplements, thyroid meds - been stable for years, and most recently Evoxac that I have been given.

    Taking Plaquenil for Rheumatoid Arthritis