Dicloxacillin Sodium hydrate is primarily used as an antibiotic to treat infections caused by penicillinase-producing staphylococci. It is effective against skin infections, respiratory tract infections, and soft tissue infections. The medication is often prescribed for conditions like cellulitis, impetigo, and infected wounds. It works by inhibiting bacterial cell wall synthesis, leading to the destruction of the bacteria. Dicloxacillin is typically administered orally and is particularly useful in cases where penicillin-resistant bacteria are involved. It is important to complete the full course of treatment to prevent the development of antibiotic resistance.