Hypersensitivity to Penicillins: Caution should be exercised in using Flumox in patients with history of hypersensitivity to penicillins.
Gastrointestinal: Oral administration may occasionally cause nausea or diarrhoea.
Hepatotoxicity: Flumox may be occasionally associated with abnormal liver function test especially SGOT. However, infants with acute jaundice should not be prescribed with Flumox.
Others: Although rarely reported, neutropenia and agranulocytosis at very high doses for a prolonged period.