How to use Dioralyte Rebalance: Dissolve contents of one sachet in 200 ml (approximately 7 fluid ounces) of drinking water. For infants and where drinking water is not available, the water should be freshly boiled then cooled. The solution should be made up immediately before use. If refrigerated, the solution may be stored for up to 24 hours, otherwise any solution remaining one hour after reconstitution should be discarded. The solution must not be boiled after reconstitution.