Indications |
Oral Prophylaxis of malaria Adult: 200 mg daily when used with chloroquine or 100 mg daily when used with 250 mg atovaquone. Recommendation: Start prophylaxis 1 wk before exposure to malaria, or 1-2 days prior to travel. Continue admin throughout exposure and for at least 4 wk (or 1 wk if given with atovaquone) after leaving a malaria-infested area. Child: Co-admin with chloroquine: ≥45 kg (≥13 yr): Same as adult dose, 25-44.9 kg (8-12 yr): ¾ of adult dose, 16-24.9 kg (4-7 yr): ½ of adult dose, 10-15.9 kg (1-3 yr): 3/8 of adult dose, 6-9.9 kg (3-11 mth): ¼ of adult dose, <6 kg (0-12 wk): 1/8 of adult dose. Co-admin with atovaquone: ≥40 kg: Same as adult dose, 31-40 kg: ¾ of adult dose, 21-30 kg: ½ of adult dose, 11-20 kg: ¼ of adult dose.
Oral Uncomplicated falciparum malaria Adult: 400 mg when used with 1 g of atovaquone as a single daily dose for 3 consecutive days. Child: ≥40 kg: Same as adult dose, 31-40 kg: ¾ of adult dose, 21-30 kg: ½ of adult dose, 11-20 kg: ¼ of adult dose, 9-10 kg: 3/16 of adult dose, 5-8 kg 1/8 of adult dose.
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Contraindications |
Hypersensitivity. Severe renal failure; known resistance of Plasmodium spp. | ||||||||||||||||
Warnings / Precautions |
Renal impairment. Lactation. | ||||||||||||||||
Adverse Reactions |
GI disturbances, headache, vertigo, rash, haematological abnormality in persons with renal impairment, dermatological reactions. | ||||||||||||||||
Drug Interactions |
May reduce bioavailability of cloxacillin. Absorption is reduced when used with magnesium trisilicate. Increased risk of mouth ulcers when used with chloroquine. Fluvoxamine may reduce the metabolism of proguanil to its active metabolite, cycloguanil, See Below for More proguanil Drug Interactions |
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Mechanism of Actions |
Proguanil is a biguanide derivative which has to be metabolised in the body to the active metabolite, cycloguanil. It acts by inhibiting plasmodial dihydrofolate reductase and preventing nucleic acid synthesis. It is active against pre-erythrocytic forms and is a slow blood schizontocide. Absorption: Readily absorbed after oral admin. Distribution: Distributes into breast milk. Metabolism: In the liver to active metabolite, cycloguanil. Excretion: About 40-60% excreted in urine, of which 60% unchanged and 30% cycloguanil. |
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Administration |
Should be taken with food. (Take after meals. Tab may be crushed & mixed w/ milk, honey or jam just before swallowing.) |
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ATC Classification |
P01BB01 - proguanil ; Belongs to the class of biguanide antimalarials. | ||||||||||||||||
Available As |
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Proguanil
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Proguanil Containing Brands
Proguanil is used in following diseases
Drug - Drug Interactions of Proguanil
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