  We address the behavior of the Dirac equation with scalar ($S$), vector ($V$)
and tensor ($U$) interactions under the $\gamma^{5}$ discrete chiral
transformation. Using this transformation we can obtain from a simple way
solutions for the Dirac equation with spin ($\Delta=V-S=0$) and pseudospin
($\Sigma=V+S=0$) symmetries including a tensor interaction. As an application,
the Dirac equation with scalar, vector and tensor Cornell radial potentials is
considered and the correct solution to this problem is obtained.
