If you are about to be started on any new medicine, remind your doctor and pharmacist that you are taking Co-Diovan. If it is almost time for your next dose, skip the missed dose and take the next one when you are meant to. This also helps you remember to take it, especially if you take it as part diovan over the counter of your usual routine (e.g. at breakfast time). This medicine will keep working for the whole 24 hours until the next dose is due. Follow carefully all directions given to you by your doctor and pharmacist. Tell your doctor if you are allergic to any other medicines, foods, dyes or preservatives.