Dalteparin is a medication that belongs to a class of drugs known as low molecular weight heparins. It is primarily used to prevent and treat blood clots in patients, especially those undergoing surgery or those with certain medical conditions that increase the risk of clot formation. Dalteparin works by inhibiting specific clotting factors in the blood, which helps to reduce the likelihood of clot development. This medication is typically administered through an injection under the skin. Patients may receive dalteparin in a hospital setting or at home, depending on their condition. It is important for patients to follow their healthcare provider's instructions regarding dosage and administration to ensure safety and effectiveness.