Moisol Eye Drop is usually taken when needed. Use the number of drops as advised by your doctor. Wait for at least 5-10 minutes before delivering any other medication in the same eye to avoid dilution. Do not use a bottle if the seal is broken before you open it. Always wash your hands and do not touch the end of the dropper. This could infect your eye. This medicine may require long-term use and can be taken safely for as long as you need it.