Prevention of Chemotherapy-Induced Nausea and Vomiting in Single-Dose Therapy in Adults. The usual maximum dose comprar zofran in patients with severe liver problems is milligrams in 24 hours. Pediatric Studies: Three open-label, uncontrolled, foreign trials have been performed with 182 pediatric patients to 18 years old with cancer who were given variety of cisplatin or noncisplatin regimens. The use of Zofran brand name and generic drugs should be done so only after receiving consultation, and written prescription by licensed physician. Generic Zofran is also used to treat other conditions as determined by your health physician. As shown in Table 3, the 41 patients with pharmacokinetic data were divided into groups, patients month to months of age and patients to 24 months of age, and are compared to pediatric patients to 12 years of age.