Table 4: Oral antimicrobial therapy for acute bacterial sinusitis approved for use in Canada
Drug	Adult dosage	Pediatric dosage
Amoxicillin	500 mg q8h	40 mg/kg daily, in 3 doses
Amoxicillin­clavulanate	500/125 mg q8h	45/6.4 mg/kg daily, in 2 doses
Clarithromycin	500 mg bid	15 mg/kg daily, in 2 doses
Cefuroxime axetil	250 mg bid	30 mg/kg daily, in 2 doses
Cefaclor	250 mg q8h	20­40 mg/kg daily, divided q8h­q12h
Cefixime	400 mg bid	9 mg/kg daily
TMP­SMX*/td>	160/800 mg q12h	8/40 mg/kg daily, in 2 doses
Erythromycin­sulfisoxazole	--	40 mg/kg daily, in 3 doses
*TMP­SMX = trimethoprim­sulfamethoxazole.

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