Why chloroquine is given in loading dose

Discussion in 'Canadian Drug' started by KarinaRU, 24-Feb-2020.

  1. LizModern Guest

    Why chloroquine is given in loading dose


    Chloroquine has been extensively used in mass drug administrations, which may have contributed to the emergence and spread of resistance. It is recommended to check if chloroquine is still effective in the region prior to using it.

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    Indeed, Chloroquine is a potent blocker of autophagy and has been demonstrated in a lab setting to dramatically enhance tumor response to radiotherapy, chemotherapy and even anti-hormonal therapy. This is why Chloroquine has become part of many clinical trials, in combination with chemotherapy and other form of cancer treatments. These findings support the idea that a loading dose of 20 mg/kg given at intervals during the first 12 h is well tolerated and can be used to obtain a more rapid decrease in parasitemia and to shorten the treatment time of uncomplicated chloroquine-susceptible falciparum malaria in the field. Some medicines need to be given at high initial doses loading doses at the start of treatment, before being reduced to a lower, maintenance dose. Reasons vary for the need for loading doses. In some patients the therapeutic level is needed very quickly—for example, phenytoin to stabilise a patient after a seizure.

    The Centers for Disease Control and Prevention recommend against treatment of malaria with chloroquine alone due to more effective combinations. In areas where resistance is present, other antimalarials, such as mefloquine or atovaquone, may be used instead.

    Why chloroquine is given in loading dose

    WHO Model Prescribing Information Drugs Used in Parasitic., Efficacy of a loading dose of oral chloroquine in a 36-hour.

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  4. In pharmacokinetics, a loading dose is an initial higher dose of a drug that may be given at the beginning of a course of treatment before dropping down to a lower maintenance dose. A loading dose is most useful for drugs that are eliminated from the body relatively slowly, i.e. have a long systemic half-life.

    • Loading dose - Wikipedia.
    • Safer loading doses of medicines summary of a safety report..
    • Chloroquine given in 600 mg as loading dose for.

    Chloroquine Phosphate. 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. Apr 02, 2019 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. Malaria treatment oral To treat malaria in adults, one dose of oral chloroquine is usually given right away. Then, half the dose is taken six to eight hours later. This is typically followed by half the dose once a day for the next two days. Amebiasis treatment oral To treat amebiasis in adults.

     
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