Parenteral chloroquine for treating falciparum malaria.

There is no information and therefore no consensus on how chloroquine should be administered to persons with severe malaria. Although widely considered dangerous, parenteral chloroquine is extensively used. We studied the acute disposition and toxicity of intravenous (iv), intramuscular (im), subcut...

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Κύριοι συγγραφείς: White, N, Watt, G, Bergqvist, Y, Njelesani, E
Μορφή: Journal article
Γλώσσα:English
Έκδοση: 1987
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author White, N
Watt, G
Bergqvist, Y
Njelesani, E
author_facet White, N
Watt, G
Bergqvist, Y
Njelesani, E
author_sort White, N
collection OXFORD
description There is no information and therefore no consensus on how chloroquine should be administered to persons with severe malaria. Although widely considered dangerous, parenteral chloroquine is extensively used. We studied the acute disposition and toxicity of intravenous (iv), intramuscular (im), subcutaneous (sc), and oral chloroquine in 60 adult Zambian patients hospitalized with falciparum malaria. Plasma concentration profiles after parenteral administration were characterized by wide fluctuations between peak and trough values. Absorption of im and sc chloroquine was rapid, with a median time to peak concentration of 30 min and a peak plasma concentration five times higher than after oral administration. The pharmacokinetic data suggest that the acute toxicity of parenteral chloroquine is related to transiently high concentrations in blood and result from incomplete distribution out of a relatively small central compartment. Parenteral chloroquine may be administered safely by simply giving smaller, more-frequent doses than are currently used or, in the case of iv administration, by using continuous infusion.
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spelling oxford-uuid:90806dce-392e-473b-97a4-9d991b1bc7c52022-03-26T23:12:01ZParenteral chloroquine for treating falciparum malaria.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:90806dce-392e-473b-97a4-9d991b1bc7c5EnglishSymplectic Elements at Oxford1987White, NWatt, GBergqvist, YNjelesani, EThere is no information and therefore no consensus on how chloroquine should be administered to persons with severe malaria. Although widely considered dangerous, parenteral chloroquine is extensively used. We studied the acute disposition and toxicity of intravenous (iv), intramuscular (im), subcutaneous (sc), and oral chloroquine in 60 adult Zambian patients hospitalized with falciparum malaria. Plasma concentration profiles after parenteral administration were characterized by wide fluctuations between peak and trough values. Absorption of im and sc chloroquine was rapid, with a median time to peak concentration of 30 min and a peak plasma concentration five times higher than after oral administration. The pharmacokinetic data suggest that the acute toxicity of parenteral chloroquine is related to transiently high concentrations in blood and result from incomplete distribution out of a relatively small central compartment. Parenteral chloroquine may be administered safely by simply giving smaller, more-frequent doses than are currently used or, in the case of iv administration, by using continuous infusion.
spellingShingle White, N
Watt, G
Bergqvist, Y
Njelesani, E
Parenteral chloroquine for treating falciparum malaria.
title Parenteral chloroquine for treating falciparum malaria.
title_full Parenteral chloroquine for treating falciparum malaria.
title_fullStr Parenteral chloroquine for treating falciparum malaria.
title_full_unstemmed Parenteral chloroquine for treating falciparum malaria.
title_short Parenteral chloroquine for treating falciparum malaria.
title_sort parenteral chloroquine for treating falciparum malaria
work_keys_str_mv AT whiten parenteralchloroquinefortreatingfalciparummalaria
AT wattg parenteralchloroquinefortreatingfalciparummalaria
AT bergqvisty parenteralchloroquinefortreatingfalciparummalaria
AT njelesanie parenteralchloroquinefortreatingfalciparummalaria