Showing posts with label Artemether and lumefantrine. Show all posts
Showing posts with label Artemether and lumefantrine. Show all posts

Sunday, 20 May 2012

Artemether and lumefantrine


Artemether and lumefantrine

Class:Antimalarial

Mechanism of action

Artemether is a strong schizonticide and can bring about rapid control of symptoms by destroying plasmodium.It is equally effective against chloroquine resistant strains of subtertian malaria but ineffective in gametocytes.

Indications

It is indicated for the treatment of adults and children with acute plasmodium falciparum and mixed infections.Patients with acute malaria are frequently averse to food.The dose may be taken with food.Patients should be encouraged to resume normal eating as soon as food can be tolerated since this improves absorption of artemether and lumefantrine The event of vomiting within 1 hour of administration a repeat dose should be taken.

Precautions

Artemether has not been evaluated for the treatment of cerebral malaria or other severe manifestation of complicated malaria including pulmonary edema or renal failure.Several antimalarial known to cause  QTc prolongation and a slight QTc prolongation without clinical symptoms has been observed in a few patients mainly in cases where concomitant dehydration or electrolyte imbalance was present.Patients who remain averse to food during trearment should be closely monitored,as the risk to recrudescences may be greater.

Pregnancy and lactation

The safe use of artemether and lumefantrine during pregnancy has not been established.No data are available on the excretion of either of the two components in the breast milk.

Drug interaction

No specific drug interaction studies in humans have been conducted of artemether and lumefantrine.

Dosage

Adults:4 tablets as a single dose at the time of initial diagnosis,and then 8,24 and 48 hours thereafter (total course comprises 16 tablets).Children 5-15 kg body-weight:1 tablet as a single dose at the time of initial diagnosis,and then 8,24 and 48 hours thereafter (total course comprises 4 tablets).15-25 kg body-weight:2 tablets as a single dose at the time of initial diagnosis,and then 8,24 and 48 hours thereafter (total course comprises 8 tablets).25-35 kg body-weight:3 tablets as a single dose at the time of initial diagnosis,and then 8,24 and 48 hours thereafter (total course comprises 12 tablets).

Brands

Tabs.Exafal.Tabs.Co-Mether,Tabs.Artelum