malaria

Cards (8)

  • malaria?
    symptoms can appear 10-15 days after the infective mosquito bite.
    dosage regimen can vary geographical location
  • malaria prophylaxis refer?
    • anybody falling ill/malaria symptoms (severe flu, fever, headache, sweating, chills & vomitting within 1 year and especially within 3 months after coming back from a malarial region, despite having followed all precautions.
  • malaria prophylaxis counselling?
    • prevention is key as treatment is not 100% effective
    • using insect repellent (containing DEET) provides longer protection
    • DEET containing products can be used in children >2 months and in pregnant/breastfeeding
    • DEET reduces the SPF of sunscreen, therefore always apply DEET after sunscreen (SPF 30-50 is best)
    • long sleeves & trousers worn after dusk provide protection against bites
    • use of mosquito bed nets, especially those impregnated with repellent e.g. permethrin
  • what medicines are used in malaria prophylaxis?
    • proguanil 100mg tablet (paludrine)
    • chloroquine phosphate 250mg tablet (avlocolor, equivalent to 155mg of chloroquine base)
    • atovaquone/proguanil 250mg/100mg (maloff protect)
    • doxycycline POM
  • proguanil 100mg tablet (paludrine) ?

    • daily dose
    • start 1 week before entering malarial region (urgent cases can start 2 days before)
    • continue for 4 weeks after leaving the region
    • caution; renal impairment REFER TO GP
    • side effects: megaloblastic anaemia, skin rash, diarrhoea/GI upset
  • chloroquine phosphate 250mg tablet (avlocolor, equivalent to 155mg of chloroquine base)?
    • weekly dose
    • start 1 week before entering malarial region
    • continue during stay
    • continue for 4 weeks after leaving the region
    • NOT for amiodarone patients
    • side effects agranulocytosis/ blood disorders, hypoglycaemia, depression
    • atovaquone/proguanil 250mg/100mg (maloff protect)?
    • daily dose
    • start 1-2 days before entering malarial region
    • continue during stay
    • continue for 1 week after leaving the region
    • licensed for adults only
    • NOT for <40kg
    • MAX 12 week supply, longer duration is PGD or POM
    • refer planning to conceive/pregnant/breastfeeding
    • side effects: headache, nausea, vomiting, depression
    • NOT for warfarin, rifampicin, antiretroviral patients (also prolongs QT interval)
    • doxycycline
    • start 1-2 days before entering malarial region, during stay, 4 weeks after leaving