Drug Contraindictaed in Favism

Many substances are potentially harmful to people with G6PD deficiency, variation in response to these substance makes individual predictions difficult.Antimalarial drugs that can cause acute haemolysis in people with G6PD deficiency include primaquine, pamaquine and chloroquine. There is evidence that other antimalarials may also exacerbate G6PD deficiency, but only at higher doses. Sulfonamides (such as sulfanilamide, sulfamethoxazole and mafenide), thiazolesulfone, methylene blue and naphthalene should also be avoided by people with G6PD deficiency, as should certain analgesics (such as aspirin, phenazopyridine and acetanilide) and a few non-sulfa antibiotics (nalidixic acid, nitrofurantoin, and furazolidone). Henna has been known to cause haemolytic crisis in G6PD-deficient infants.

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