Table 3.
Quinine | Quinidine | Artesunate | Artemether | ||
---|---|---|---|---|---|
Dosage | 20 mg salt/kg BW on admission (IV infusion or divided IM injection), then 10 mg/kg BW every 8 ha | 6.25 mg base/kg infused IV over 1–2 h, then continuous infusion of 0.0125 mg base/kg/minb | 2.4 mg/kg BW or IM at admission then at 12 h and 24 h, then once a daya | 3.2 mg/kg BW IM at admission, then 1.6 mg/kg BW per daya | |
Efficacy | Lower cure rates vs. ART | No data available on efficacy in pregnancy | More efficacious in adults and children than QUI | No data on efficacy in pregnancy; equivalent to QUI in adult populations | |
Pharmacokinetics | Some studies suggest pregnant women metabolize QUI faster than do non-pregnant women | No data available on pharmacokinetics in pregnancy | Limited data suggest that pregnant women may have accelerated clearance of the metabolite DHA | Pregnant women have lower concentrations metabolite DHA than non-pregnant women; erratic drug release | |
Tolerability | Mild to moderate cinchonism including tinnitus, headache, blurred vision, altered auditory acuity, nausea, and diarrhea | No data on tolerability in pregnancy | Good tolerability vs. QUI. Some nausea and vomiting but may be due to malaria infection | Good tolerability. Some swelling and pain at injection site | |
Safety in pregnancy | Safe in pregnancy | Safe in pregnancy | Teratogen in animal studies; limited human studies found no association between exposure and miscarriage, stillbirth, or congenital anomalies | Teratogen in animal studies; limited human studies found no association between exposure and miscarriage, stillbirth, or congenital anomalies | |
Other serious adverse events | Increased risk of hypoglycemia | Increased risk of QT prolongation requiring electrocardiographic monitoring, hypoglycemia | Delayed hemolysis reported (day 7–31) | None reported; limited data | |
Interactions with HAART | Women on PIs and NNRTIs need cardiac monitoring due to cardiotoxicity | No data on interactions with HAART | Preferred choice for women on PIs and NNRTIs | When co-administered with PIs or NNRTIs may result in a reduction in the active metabolite of artemether | |
WHO Recommendation | Recommended to be used in first trimester or in 2nd and 3rd trimester if ART and artemether unavailable | Recommended to be used in the USA;b Not recommended by WHO | Recommended treatment for severe malaria in 2nd–3rd trimester, can be used in 1st trimester | Recommended to be used if ART is unavailable |
ART artesunate, BW bodyweight, CDC Centers for Disease Control and Prevention, DHA dihydroartemisinin, HAART highly active anti-retroviral therapy, IM intramuscular, IV intravenous, NNRTI non-nucleotide reverse transcriptase inhibitors, PI protease inhibitor, QUI quinine, WHO World Health Organization
aTreatment guidelines according to WHO
bTreatment guidelines according to CDC