Both Elesert and Daxid contain the same active generic medication, sertraline, at your 200mg dose. Because they have the same active ingredient, switching between these brands is generally very safe and unlikely to cause significant new side effects. However, minor differences in inactive ingredients can occasionally affect how your body absorbs the medicine. Since you feel your current brand is not working well, please consult your doctor before making this switch. They can safely guide this transition and closely monitor your progress to ensure you get the relief you deserve.