Please follow your doctors instructions regarding the dose and duration of Levogen Tablet You can take it with or without food but preferably at the same time every day Its important not to miss any doses and complete the full course of treatment even if you start feeling better Do not take a double dose to compensate for a missed dose Simply take the next dose as scheduled Possible side effects of this medicine may include headaches dizziness nausea and constipation These side effects are usually temporary and resolve on their own However if they bother you or persist for a longer duration its advisable to consult your doctor You may also experience diarrhea as a side effect which should stop once your course of treatment is complete If it doesnt stop or if you notice blood in your stools please inform your doctor If you are allergic to any of the ingredients in this medicine its important not to take it People with kidney problems should take special care while using this medicine