Phexin 250 mg is a prescription antibiotic containing cephalexin 250 mg per capsule. Cephalexin belongs to the first-generation cephalosporin class of antibiotics and works by interfering with bacterial cell-wall synthesis, resulting in the destruction of susceptible bacteria.

Cephalexin is prescribed for a variety of susceptible bacterial infections, including certain respiratory tract, skin and soft-tissue, urinary tract, and other infections. The choice of antibiotic, dose, and duration of treatment should be determined by a healthcare professional based on the type of infection and individual patient factors.