Hydroxychloroquine dose adjustment

Discussion in 'Northwest Pharmacy Canada' started by legum, 06-Mar-2020.

  1. validater Guest

    Hydroxychloroquine dose adjustment


    -Suppressive therapy should continue for 8 weeks after leaving the endemic area. Approved indication: For the suppressive treatment of malaria due to Plasmodium vivax, P malariae, P ovale, and susceptible strains of P falciparum CDC Recommendations: 300 mg base (500 mg salt) orally once a week Comments: -For prophylaxis only in areas with chloroquine-sensitive malaria -Prophylaxis should start 1 to 2 weeks before travel to malarious areas; should continue weekly (same day each week) while in malarious areas and for 4 weeks after leaving such areas.

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    Based on the 2011 recommendations from the AAO and ACR, 17% of the patients were receiving an HCQ overdose that was more than 10% above the recommended dosage, and another 13% received a smaller overdose. If the 2016 dosage guidelines were applied, the extent of overdosing might be even greater, Dr. Koppikar said. All patients in the cohort were prescribed hydroxychloroquine not to exceed a dose of 6.5 mg per kilogram. The maximum daily dose prescribed is 400 mg. In those who are on hemodialysis 200 mg was prescribed after each dialysis session. Based on 2016 recommendations from the American Academy of Ophthalmology, the recommended safe threshold dose has been reported as 2.3 mg/kg/d for chloroquine and 5 mg/kg/d for hydroxychloroquine. Real weight, not ideal weight, is used for the dosage calculation.

    Approved indication: For acute attacks of malaria due to P vivax, P malariae, P ovale, and susceptible strains of P falciparum CDC Recommendations: Chloroquine-sensitive uncomplicated malaria (Plasmodium species or species not identified): 600 mg base (1 g salt) orally at once, followed by 300 mg base (500 mg salt) orally at 6, 24, and 48 hours Total dose: 1.5 g base (2.5 g salt) Comments: -For the treatment of uncomplicated malaria due to chloroquine-sensitive P vivax or P ovale, concomitant treatment with primaquine phosphate is recommended. 60 kg or more: 1 g chloroquine phosphate (600 mg base) orally as an initial dose, followed by 500 mg chloroquine phosphate (300 mg base) orally after 6 to 8 hours, then 500 mg chloroquine phosphate (300 mg base) orally once a day on the next 2 consecutive days Total dose: 2.5 g chloroquine phosphate (1.5 g base) in 3 days Less than 60 kg: First dose: 16.7 mg chloroquine phosphate/kg (10 mg base/kg) orally Second dose (6 hours after first dose): 8.3 mg chloroquine phosphate/kg (5 mg base/kg) orally Third dose (24 hours after first dose): 8.3 mg chloroquine phosphate/kg (5 mg base/kg) orally Fourth dose (36 hours after first dose): 8.3 mg chloroquine phosphate/kg (5 mg base/kg) orally Total dose: 41.7 mg chloroquine phosphate/kg (25 mg base/kg) in 3 days Comments: -Concomitant therapy with an 8-aminoquinoline compound is necessary for radical cure of malaria due to P vivax and P malariae.

    Hydroxychloroquine dose adjustment

    Hydroxychloroquine Dosage Guide with Precautions -, Hydroxychloroquine Blood Levels in SLE Clarifying dosing.

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  7. Additionally, an inverse dose-response relationship was found, with the lowest risk seen in patients who received a cumulative dose of hydroxychloroquine 70 defined daily dose within 90 days after rheumatoid arthritis diagnosis or a hydroxychloroquine dose 400 mg/d.

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    Furthermore, dose adjustments may need to be made in patients with concomitant medical conditions, in patients taking certain medications, as well as in elderly patients. Patients who have undergone any weight or hormonal changes may require dose adjustments, and the majority of pregnant women require increased doses of levothyroxine. Adults. 200 mg 155 mg base to 400 mg 310 mg base PO per day, administered as a single dose or in 2 divided doses. Antimalarials and/or glucocorticoids are of benefit and may be used for the treatment of SLE without major organ manifestations; however, judicious use of hydroxychloroquine is recommended. Your doctor may adjust your dose if needed. However, dose is usually not more than 600 mg or 6.5 mg per kilogram kg of body weight per day, whichever is lower. Children—Use and dose must be determined by your doctor. For treatment of lupus Adults—200 to 400 milligrams mg taken as a single dose or in two divided doses once a day.

     
  8. IPBoard.Org New Member

    Plaquenil (hydroxychloroquine) belongs to a group of medicines called quinolines. What Is Hydroxychloroquine and How Does It Help Arthritis. What Is Hydroxychloroquine? Donald Trump Asks FDA to. Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria
     
  9. chavugo Guest

    How long does Hydroxychloroquine stay in your system? Nov 02, 2010 Hydroxychloroquine has an extremely long half life of around 32 days. This means that every 32 days, half of the previous amount of hydroxychloroquine in the body disappears. It takes around 5.5 half lives for a drug to be completely eliminated from your body meaning that you may need to wait for around 176 days.

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