Velosef Injection 500mg (Cephradine) - GlaxoSmithKline | derma.pkVelosef 500mg Injection contains Cephradine A cephalosporin antibiotic used to treat a variety of bacterial infections. This medicine works by stopping bacteria from building their protective walls, which leads to their destruction. Therefore, it is effective against a wide range of infections. These include: Respiratory tract infections (sinusitis, bronchitis, pneumonia) Skin and soft tissue infections (abscesses, cellulitis) Urinary tract infections