Women of childbearing age must use contraception while taking Zonegran and for one month after stopping. • are elderly, as your dose of Zonegran may need adjusting, and you may be more likely to develop an allergic reaction or severe skin rash when taking Zonegran (see Section 4 Possible Side Effects). • suffer from liver problems, as your dose of Zonegran may need adjusting. • suffer from kidney problems as your dose of Zonegran may need adjusting. • have previously suffered from kidney stones, as you may be at increased risk of developing more kidney stones.