Sulfisoxazole (Gantrisin), 1 g orally four times daily, is p…

Sulfisoxazole (Gantrisin), 1 g orally four times daily, is prescribed for an adolescent with a urinary tract infection. The medication label reads “500-mg tablets.” The nurse has determined that the dosage prescribed is safe. The nurse administers how many tablets per dose to the adolescent? _____