DA 5% (Opso Saline) Injection is a sterile intravenous solution composed of 5% dextrose and 0.9% sodium chloride. It is used to treat dehydration, restore electrolyte balance, and provide a source of energy in patients unable to eat or drink. This injectable solution is administered directly into a vein (IV) under medical supervision in hospital or clinical settings. Proper monitoring is required to avoid complications like fluid overload or electrolyte imbalances, especially in patients with heart or kidney conditions.